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Last update: July 2013 College Algebra K Level Scope and Sequence 2013-14 First Semester Sections in Book MA0314 SLOs Time (days) Unit 1: Review of Basic Concepts and Polynomials R.2, R.3, R.4 NA 18 Unit 2: Rational and Radical Expressions R.5, R.6, R.7 NA 13 1.1, 1.2 NA 10 Unit 4: Quadratic Equations with Applications 1.3, 1.4, 1.5 MA1314-2 12 Unit 5: Other Equations and Inequalities with Applications 1.6, 1.7, 1.8 MA1314-2 MA1314-6 (includes finals week) Unit Name Unit 3: Linear Equations with Applications Total 25 78 Second Semester Unit Name Sections in Book Unit 6: Linear Functions 2.1 - 2.8 Unit 7: Polynomial and Rational Functions 3.1 - 3.6 Unit 8: Exponential and Logarithmic Functions 4.1 - 4.6 Unit 9: Systems and Matrices 5.1, 5.2, 5.6, 5.7 MA0314 SLOs MA1314-1 MA1314-3 MA1314-1 MA1314-2 MA1314-3 MA1314-4 MA1314-6 MA1314-1 MA1314-2 MA1314-3 Time (days) MA1314-5 (includes finals week) Total 26 22 25 26 99 College Algebra K Level Scope and Sequence 2013-14 Last update: June 2013 Unit 1: Review of Basic Concepts and Polynomials Textbook Sections: R.2, R.3, R.4 Enduring Understandings: Time Spent: 20 Days The student understands that mathematics is a structure with rules and definitions that can be applied to solve problems. The student understands the importance of the skills required to manipulate symbols in order to solve problems. The student understands that expressions can be mathematically manipulated to create equivalent forms of the expression. The student understands that polynomials can be written in a variety of ways and still be equivalent. Vocabulary: natural numbers, whole numbers, integers, rational numbers, irrational numbers, real numbers, simplify, evaluate, base, power, exponent, monomial, binomial, trinomial, polynomial, degree, term, coefficient, constant, leading coefficient, factor Student Learning Outcomes: No MATH1314 SLOs apply here. The student will know… • • • the characteristics of the number lines and the coordinate plane for all real numbers. that numbers can be categorized into sets (Natural, Whole, Integers, Rational, Irrational, Real). that properties of real numbers can be used to simplify expressions. The student will be able to… • • • identify the set to which a given number belongs. Ex: π is an irrational number apply properties of real numbers and order of operations to evaluate and/or simplify expressions. apply properties of real numbers and order of operations to evaluate and/or simplify expressions. 2 1 5 1 Ex: − + − − − 9 4 18 2 3 16 32 40 Ex: y+ z− 8 9 27 9 Ex: −5y + x − xy when x = −4 and y = 2 • use exponent rules to simplify monomial expressions. • 3x 2 y Ex: 2 x −1y 3 simplify expressions, including +, −, ×, ÷. 5 2 5 Ex: + 2 + 3 p p p 2 ( Ex: m (5m − 2 ) + 9 (5 − m ) − 2 m2 − 2m + 5 • ) factor polynomials of various types. GCF (Ex: 28 x 4 y 2 + 7 x 3 y − 35x 4 y 3 ) Grouping (Ex: 10ab − 6b + 35a − 21 ) Trinomials (Ex: 6k 2 + 5kp − 6 p2 ) Perfect square trinomials (Ex: 9m2 n2 + 12mn + 4 ) Difference of two squares (Ex: 36 z 2 − 81y 4 ) Sum/Difference of two cubes (Ex: 8m3 − 27n3 ) Factoring with substitution (Ex: (2n + 1)2 − 9n2 ) 2 College Algebra K Level Scope and Sequence 2013-14 Last update: June 2013 Unit 2: Rational and Radical Expressions Textbook Sections: R.5, R.6, R.7 Enduring Understandings: Time Spent: 13 Days The student understands that expressions can be mathematically manipulated to create equivalent forms of the expression. The student understands that concepts involving simple expressions (such as numerical fractions) can be applied to more complex expressions. The student understands that there are rules that define how an expression can be mathematically manipulated, including rules involving exponents, rational expressions, and radicals. Vocabulary: rational expression, domain (of a rational expression), zero-factor Property, fundamental principle of fractions, least common denominator, complex fraction, negative exponent, rational exponent, product rule, quotient rule, power to a power, radical notation, radical sign, radicand, index, nth root, principal nth root, like radicals, unlike radicals Student Learning Outcomes: No MATH1314 SLOs apply here. The student will know… • • • • • • • that there are some value(s) for which a rational expression may be undefined. the fundamental principle of fractions, ac a for b ≠ 0, c ≠ 0 , and = bc b how to apply it. the properties of exponents, particularly as they apply to negative and rational exponents. that the properties of exponents may be combined to simplify certain types of expressions. that complex fractions may be simplified, in some cases, from the standpoint of negative exponents. the product, quotient, and power rules for radicals, and how to use them, in combination if necessary, to simplify radical expressions. that radical notation and rational exponents of an expression are related. The student will be able to… • determine the domain over which a rational expression is defined. ( x + 6 ) ( x + 4) is x | x ≠ −2, − 4 Ex: the domain of { } ( x + 2) ( x + 4) • apply the fundamental principle of fractions to multiplication, division, addition, subtraction, and simplification of rational expressions and complex fractions. 2 p2 + 7 p − 4 Ex: 5p2 + 20 p Ex: x3 − y 3 2 x + 2y + xz + yz • 2 2 x −y 2 x 2 + 2y 2 + zx + zy 2 Ex: 3p2 + 11p − 4 9 p + 36 ÷ 3 2 24 p − 8 p 24 p4 − 36 p3 y 8 + y −2 2−y 3 1 − 2 Ex: 2 x + x −2 x − x − 12 5 6− k Ex: 5 1+ k apply exponent rules to simplify expressions and solve problems, including those with rational and negative exponents. 25r 7 z 5 Ex: 10r 9 z Ex: • 3 College Algebra K Level Scope and Sequence 2013-14 Last update: June 2013 (3x ) (3x ) (3 x ) −1 2 Ex: 5 −1 −2 2 −2 1 Ex: −1296 4 Ex: 16 Ex: − 27 3 4 1 5 • 27 273 3 Ex: ( y − 2 ) Ex: • (x + y) 2 + ( y − 2) 3 −1 4 5 ( =5 −32 (p p2 + q = Ex: 2 ) 4 +q ) = 16 ( −2) = 4 1 2 simplify radical expressions 64 Ex: 6 729 Ex: 6 ( −2) Ex: 3 m • 3 m2 Ex: 7 3 Ex: 3 Ex: 6 2 81x 5 y 7 z 6 98 x 3 y + 3x 32 xy Ex: • 3 x −1 + y −1 convert between radical notation and the rational exponent form of an expression. Ex: ( −32 ) • −1 3 9 Ex: ( Ex: 3 Ex: ( 63 2 +3 5 − x6 3 )( 3 8 −5 ) 4 x9 ) 2 11 − 1 3 11 + 3 11 + 1 Ex: 4 −64 rationalize the denominator of a rational expression with a radical in the denominator. 7 Ex: 3− 7 4 College Algebra K Level Scope and Sequence 2013-14 Last update: June 2013 Unit 3: Linear Equations with Applications Textbook Sections: 1.1, 1.2 Enduring Understandings: Time Spent: 10 Days The student understands the basic terminology of linear equations and how to solve them. The student understands that certain principles and methods can be applied to finding solutions to real-world problems. The student understands that there are many practical real-world applications that can be modeled with linear equations. Vocabulary: equation, solution, root, solution set, variable, first-degree equation, identity, conditional equation, contradiction, empty set, literal equation, independent variable, dependent variable Student Learning Outcomes: No MATH1314 SLOs apply here. The student will know… • • • • • • the basic terminology of equations and the definition of a linear equation in one variable. that there is a variety of methods than can be used to solve linear equations. that the process of solving equations can be broken down into steps. that there are different types of linear equations. the addition and multiplication principles of equality. that linear equations can be used to model real-world situations. The student will be able to… • solve linear equations on one variable. Ex: 3 (2 x − 4 ) =7 − ( x + 5) • remove fractions from an equation by multiplying both sides of the equation by the common denominator. 2x + 4 1 1 7 Ex: + x = x− 3 2 4 3 Ex: 0.3(x + 2) – 0.5(x + 2) = -0.2x – 0.4 identify different types of linear equations (i.e. identities, conditional equations, contradictions). Ex: 0 = 0 (Identity) Ex: x = 3 (Conditional) Ex: -3 = 7 (Contradiction) solve a literal equation for a specified variable. Ex: Solve A − P = P r t for P • • • solve certain types of geometry, simple interest, motion, and mixture problems that can be modeled with linear equations. Ex: If the length of each side of a square is increased by 3 cm, the perimeter of the new square is 40 cm more than twice the length of each side of the original square. Find the dimensions of the original square. Ex: Latoya borrowed $5240 for new furniture. She will pay it off in 11 months at an annual simple interest rate of 4.5%. How much interest will she pay? Ex: Maria and Eduardo are traveling to a business conference. The trip takes 2 hours for Maria and 2.5 hours for Eduardo, since he lives 40 miles further away. Eduardo travels 5 mph faster than Maria. Find their average rates. Ex: Charlotte is a chemist. She needs a 20% solution of alcohol. She has a 15% solution on hand as well as a 30% solution. How many liters of the 15% solution should she add to 3 L of the 30% solution to obtain her 20% solution? Ex: An artist has sold a painting for $410,000. He needs some of the money in 6 months and the rest in 1 year. He can get a treasury bond for 6 months at 4.65% and one for a year at 491%. His broker tells him the total investment will earn a total of $14,961. How much should be invested at each rate to obtain that amount of interest? 5 College Algebra K Level Scope and Sequence 2013-14 Last update: June 2013 Unit 4: Quadratic Equations with Applications Textbook Sections: 1.3, 1.4, 1.5 Enduring Understandings: Time Spent: 12 Days The student understands that the number system used to solve problem scan be extended to include nonreal numbers (i.e. complex numbers). The student understands the basic terminology of quadratic equations and how to solve them. The student understands that certain principles and methods can be applied to finding solutions to real-world problems. The student understands that there are many practical real-world applications that can be modeled with quadratic equations. Vocabulary: imaginary unit, complex number, real number, pure imaginary, complex conjugate, standard form (a+bi), quadratic equation, second-degree equation, standard form ( ax 2 + bx + c = 0 ), zero-factor property, double root, square root property, completing the square, quadratic formula, cubic equation, discriminant, Pythagorean theorem Student Learning Outcomes: MA1314-2. Recognize, graph, and apply polynomial, [rational, radical, exponential, logarithmic and absolute value functions] and solve related equations. The student will know… • • • • • • • the definition and characteristics of the imaginary unit and complex numbers. the definition of a quadratic equation. the zero-factor property and how to apply it. the square root property and how to apply it. that there are various methods of solving a quadratic equation, including: factoring, taking the square root, completing the square, and the quadratic formula. the significance of the discriminant in a quadratic equation. that there are real-world applications problems that can be modeled with quadratic equations. The student will be able to… • • rewrite an expression with a negative radicand using the imaginary unit 4i Ex: −16 = perform operations (+, -, ×, ÷) on complex numbers, including using a complex conjugate for division and/or simplification. −48 Ex: 24 −8 + −128 4 Ex: 3 − ( 4 − i ) − 4i + ( −2 + 5i ) Ex: Ex: ( 2 + 4i )( 2 + 4i ) −3 + 4i 2−i simplify powers of i. Ex: i15 solve quadratic equations using various methods (zerofactor property, square root property, completing the square, quadratic formula). −4 x2 + x = −3 Ex: Ex: • • −4 x2 + x + 3 = 0 0 etc. ( −4x − 3)( x − 1) = 6 College Algebra K Level Scope and Sequence 2013-14 Last update: June 2013 Ex: −3 (5x − 3)2 = (5x − 3)2 =−3 5x − 3 =±i 3 5x= 3 ± i 3 = x 3±i 3 3 i 3 or ± 5 5 5 7 −4 x2 + 8 x = Ex: −4( x2 − 2 x + )= 7 −4( x2 − 2 x + 1) =7 − 4 2 3 etc. −4 ( x − 1) = Ex: 2 x 2= x − 4 1 ± 12 − 4(2)(4) etc. 2(2) solve cubic equations. Ex: x 3 + 8 = 0 solve literal quadratic equations for a specified variable. Ex: rt 2 − st = k (r ≠ 0) Solve for t. x = • • • • identify the discriminant of a quadratic equation and use it to identify the type of solutions for that equation. Ex: 5x 2 + 2 x − 4 = 0 has a discriminant of 22 − 4(5)(−4) = 84 so the equation has 2 irrational solutions. solve application problems modeled by quadratic equations (area and volume, Pythagorean theorem, height of a projectile). Ex: A piece of machinery is capable of producing rectangular sheets of metal such that the length is three times the width. If squares measuring 5 in by 5 in are cut from each of the four corners, the resulting piece of metal can be shaped into a box by folding up the sides. If the volume of the box must be 1435 in3 , what should the dimensions of the original piece of metal be? Ex: Erik finds a piece of land in the shape of a right triangle. The longer leg of the triangle is 20 m longer than twice the length of the shorter leg. Find the lengths of the sides of the triangular lot. Ex: If a projectile is shot vertically upward from the ground with an initial velocity of 100 ft/sec, neglecting air resistance, its height s, in feet above the ground t seconds after projection is given by s= −16t 2 + 100t . a) After how many seconds will the projectile be 50 ft above the ground? b) How long will it take for the projectile to return to the ground? Ex: See textbook (Ex 4, p. 125) 7 College Algebra K Level Scope and Sequence 2013-14 Last update: June 2013 Unit 5: Other Equations and Inequalities with Applications Textbook Sections: 1.6, 1.7, 1.8 Enduring Understandings: Time Spent: 25 Days The student understands the basic terminology of radical equations and inequalities and how to solve them. The student understands the basic terminology of rational equations and inequalities and how to solve them. The student understands that certain principles and methods can be applied to finding solutions to real-world problems. The student understands that there are many practical real-world applications that can be modeled with radical and rational equations and inequalities. Vocabulary: rational equation, linear inequality, interval notation, open interval, closed interval, quadratic inequality, rational inequality, absolute value equation, absolute value inequality Student Learning Outcomes: MA1314-2. Recognize, graph, and apply polynomial, rational, radical, [exponential, logarithmic] and absolute value functions and solve related equations. MA1314-6. Solve absolute value, polynomial and rational inequalities. The student will know… • • • • • • • there are real-world situations that can be modeled with rational or radical equations. the concepts and terminology of inequalities and their solution sets. there are various methods for solving linear, three-part, quadratic, absolute value, and rational inequalities. that the solution to an inequality can be expressed in various ways, including set-builder notation and interval notation. the definition and properties of absolute value expressions. there are real-world situations that can be modeled with absolute value equations and inequalities. The student will be able to… • • • • solve rational equations that lead to linear equations. 3x − 1 2x Ex: − = x x −1 3 solve rational equations that lead to quadratic equations. 3x + 2 1 −2 Ex: + =2 x −2 x x − 2x solve real-world problems modeled by rational equations such as work/rate problems. Ex: One computer can do a job twice as fast as the other. Working together, both computers can do the job in 2 ours. How long would it take each computer, working alone, to do the job? solve equations containing a radical including one square root, two square roots, or one or more cube roots. 0 Ex: x − 15 − 2 x = 2x + 3 − x + 1 = 1 Ex: 3 • 0 Ex: 4 x 2 − 4 x + 1 − 3 x = interpret rational exponents to create and solve a radical equation. 2 Ex: ( x + 1) ( Ex: 5x 2 − 6 • • − ( x + 1) 3 ) 1 4 1 3 −2 = 0 = x solve higher degree equations Ex: 12 x 4 − 11x 2 + 2 = 0 solve inequalities, including: linear, quadratic, threepart, and rational. 2x − 1 Ex: <5 3x + 4 8 College Algebra K Level Scope and Sequence 2013-14 Last update: June 2013 1 2 1 1 x + x − ( x + 3) ≤ 3 5 2 10 x−4 Ex: −3 ≤ <4 −5 solve real-world problems modeled by inequalities. Ex: If the revenue and cost of a certain product are given by C 2 x + 1000 , where x is the number of units R = 4 x and = produced and sold, at what production level does R at least equal C? Ex: If a projectile is launched from ground level with an initial velocity of 96 ft per sec, its height in feet t seconds after launching is s feet, where s = −16t 2 + 96t . When will the projectile be greater than 80 ft above ground level? use absolute value to describe distances. Ex: “k is less than 5 units from 8” becomes k − 8 ≥ 5 Ex: • • • solve absolute value equations and inequalities. 2x + 3 Ex: =1 3x − 4 5 1 2 Ex: − x > 3 2 9 1 Ex: 5x + −2 <5 2 Ex: 3x − 7 + 1 < −2 9 College Algebra K Level Scope and Sequence 2013-14 Last update: June 2013 Unit 6: Linear Functions Textbook Sections: 2.1 - 2.8 Enduring Understandings: Time Spent: 26 Days The student understands the relationship between the algebraic and geometric representations of a circle and parts of a circle. The student understands the basic terminology of relations and linear functions. The student understands that often the relationship between two quantities can be modeled by a mathematical relation, and in some of those cases, a linear function. The student understands that linear functions can be represented in a variety of ways. The student understands that the graphs of parent functions have characteristics such as continuity and symmetry which set them apart from other functions. The student understands that functions can be combined through performing operations (+, -, ×,÷) or by composition. Vocabulary: ordered pair, rectangular coordinate system, distance formula, midpoint formula, xaxis, y-axis, Cartesian coordinate system, coordinate plan, quadrants, coordinates, graph, x-intercept, y-intercept, circle, center-radius form, general form, relation, function, domain, range, function notation, increasing function, decreasing function, constant function, linear function, standard form, slope, point-slope form, parallel, perpendicular, horizontal, vertical, continuous function, identity, square, square root, cube, cube root, greatest integer function, expansion, compression, reflection, symmetry, even function, odd function, translations, composite function Student Learning Outcomes: MA1314-1. Demonstrate and apply knowledge of properties of functions, including domain and range, operations, compositions, inverses and piecewise defined functions. MA1314-3. Apply graphing techniques. The student will know… • • • • • • • • • the distance and midpoint formulas. that the equation of a circle describes the set of points on the circle. that an ordered pair is a solution of an equation if its values make the equation true when substituted in for the variables. the definition of a relation. that a function is a particular kind of relation. how to interpret functional notation. the concept of slope in a linear function. that the domain of a function represents the independent (x) values and the range represents the dependent (y) values of the function. the unique equations for a vertical line (x=a) and a The student will be able to… • calculate the distance between two points. Given P ( −5, − 7 ) ; Q ( −13, 1) , PQ= ( −13 − −5) 2 + (1 − −7 ) = 8 2 2 ) ( ( Given P 3 2, 4 5 ; Q • state the domain and range for a function. • • • ) 2, − 5 , find PQ. Ex: = y 7 − 2x determine if three given points can be the vertices of a right triangle. Ex: Are ( −6, 4 ) , ( 0, − 2 ) and ( −10, 8 ) vertices of a right triangle? find the midpoint of a segment defined by two points or an endpoint when given the midpoint and the other endpoint. Ex: Given midpoint M (5, 8 ) and endpoint (13, 10 ) , find the coordinates of the other endpoint. write the equation of a circle in center-radius from given information. Ex: Given center (2, 0) and radius 6 Ex: Write the equation of the circle from a graph. 10 College Algebra K Level Scope and Sequence 2013-14 • • • • • • • horizontal line (y=b) through a point (a, b). that transforming the graph of a parent function will create infinitely many new functions. the definition and characteristics of even and odd functions. a linear function can be written in different forms. the concept of continuity. functions can be added, subtracted, multiplied, or divided to create a new function. the concept of composition of functions. the graphs and characteristics of the following parent functions: identity (y=x) square (y=x2) square root (y = 3 • convert between the center-radius form and general form of the equation of a circle and vice versa. Ex: 0 x2 + y 2 + 6 x + 8y + 9 = x2 + 6 x 2 + y 2 + 8y = −9 2 16 x + 6 x + 9 + y + 8y + 16 = 16 ( x + 3)2 + ( y + 4)2 = • • x) cube (y=x ) absolute value (y=|x|) 1 inverse (y = ) x inverse squared 1 (y = 2 ) x greatest integer (y=||x||) Last update: June 2013 • determine if a given relation is a function. Ex: {(5, 1), (3, 2), (4, 9), (7, 8)} Ex: Ex: Ex: Ex: x + y < 3 −7 Ex: y = x −5 identify the domain and range and intervals of increasing and decreasing of a function. 5 Ex: y = x −1 find the values of functions. Ex: Find f (−1) for f = ( x ) 2x 2 − 9 { } Ex: Find f (−1) for f = ( −4, 0) , ( −1, 6 ) , (0, 8) Ex: Find f (−1) for • • • • write a linear function in various forms (i.e. slopeintercept, point-slope, standard) and convert between the forms. 1 = Ex: Write the function y − 3 ( x + 4) in slope2 intercept form and in standard form. recognize graphs of basic functions and identify discontinuities, if they exist. represent intervals of increasing and decreasing in a function. Ex: Identify the intervals of increasing and decreasing for the function shown. graph functions by hand and on a graphing calculator. 3 Ex: through (-1, 3) with slope 2 11 College Algebra K Level Scope and Sequence 2013-14 • • Last update: June 2013 1 Ex: through − , 4 , m = 0 2 find the slope of a linear function. Ex: through (2, -1) and (-3, -3) Ex: vertical line through (4, -7) Ex: 4x+3y=12 write the equation of a line in standard and slopeintercept form. Ex: through ((1, 3) and slope is 2 Ex: through (-1, 3) and (3, 4) Ex: slope is 5 and y-intercept is 15 Ex: vertical line through (-6, 4) Ex: horizontal line through (-7, 4) Ex: through (-1, 4) and parallel to x + 3y = 5 Ex: through (-5, 6) and perpendicular to x = −2 Ex: find k so that the line through (4, -1) and (k, 2) is perpendicular to the line 2y − 5x = 1 • • • • determine the slope and y-intercept of each line. Ex: x+2y=-4 graph piece-wise functions with domain restrictions. if −5 ≤ x < −1 2x Ex: f ( x ) = −2 if −1 ≤ x < 0 x 2 − 2 if 0≤ x ≤2 write a piece-wise function given a graph. Ex: transform the graphs of functions, including translations, reflections, and dilations and write the equations of transformed graphs. Ex: Describe the transformations on the parent function for the following: y x2 − 1 = y = x +2 −3 f (x) = − ( x + 1) 3 f= (x) 2 x + 1 • determine symmetry of functions. Ex: Describe the symmetry of each of the following: = y x2 + 4 y = x −3 2x − y = 6 x2 + y 2 = 25 • determine algebraically whether a function is even, odd, or neither. 12 College Algebra K Level Scope and Sequence 2013-14 Last update: June 2013 Ex: g ( x ) =x 5 + 2 x 3 − 3x • Ex: 2 x 2 − 3 Ex: x 2 + 6 x + 9 perform operations on functions and the composition of functions. −2 x 2 − 1 , find: Ex: For f ( x= ) x − 3 and g ( x ) = ( f + g ) (3) ( f − g ) ( −1) ( fg ) (2) f ( −1) g Ex: Let f ( x )= 2 − x , find: f ( x + h) f ( x + h) − f ( x ) • f ( x + h) − f ( x ) h find the composition of two given functions. 2 5 and g ( x ) = , find ( f g ) ( x ) Ex: Given f ( x ) = x x+4 and ( g f ) ( x ) 1 ( x − 2) , prove 4 that ( f g ) ( x ) = x and ( g f ) ( x ) = x . x ) 4 x + 2 and g= Ex: For f ( = (x) 13 College Algebra K Level Scope and Sequence 2013-14 Last update: June 2013 Unit 7: Polynomial and Rational Functions Textbook Sections: 3.1 - 3.6 Enduring Understandings: Time Spent: 22 Days The student understands the basic terminology and characteristics of polynomial functions and how to apply them. The student understands the basic terminology and characteristics of rational functions and how to apply them. The student understands that the relationship between quantities is often important in applied mathematics and can often be represented as variations. Vocabulary: polynomial function, leading coefficient, zero, quadratic function, parabola, vertex, synthetic division, remainder theorem, factor theorem, rational zeros theorem, fundamental theorem of algebra, multiplicity of the zero, conjugate zeros theorem, turning point, end behavior, reciprocal function, asymptote, discontinuous, rational function, oblique, direct variation, inverse variation, combined variation, joint variation Student Learning Outcomes: MA1314-1. Demonstrate and apply knowledge of properties of functions, including domain and range, operations, compositions, inverses and piecewise defined functions. MA1314-2. Recognize, graph, and apply polynomial, rational, [radical, exponential, logarithmic] and absolute value functions and solve related equations. MA1314-3. Apply graphing techniques. MA1314-4. Evaluate all roots of higher degree polynomial and rational functions. MA1314-6. Solve [absolute value,] polynomial and rational inequalities. The student will know… • • • • • • • the definition and characteristics of a polynomial function. that linear and quadratic functions are polynomial functions. the division algorithm. that synthetic division is a shortcut for long division of polynomials. the remainder theorem. the definition and characteristics of a rational function. some relationships between quantities can be expressed as a variation. The student will be able to… • • graph and analyze a quadratic function using transformation techniques. 2 1 Ex: f ( x ) = − x − 4) + 5 ( 2 transform the general form of a quadratic function to the vertex (graphing) form using completing the square. Ex: f ( x ) = 2x 2 − 4x + 5 = 2( x 2 − 2 x )+5 2 = 2( x − 2 x + 1) + 5 − 2 = 2 ( x − 1) + 3 2 • • • • analyze the quadratic models of real-world situations. Ex: Sum and product of two numbers Ex: Area problems Ex: Projectiles divide polynomials using long division or synthetic division. 5x 3 − 6 x 2 − 28 x − 2 Ex: x +2 use the remainder theorem to determine values and zeros of polynomial function. Ex: Determine if 2+i is a zero of f ( x ) = x 3 + 3x 2 − x + 1 use the factor theorem and/or conjugate zeros theorem to factor polynomials. Ex: Factor f ( x ) = 24 x 3 + 80 x 2 + 82 x + 24 14 College Algebra K Level Scope and Sequence 2013-14 • Last update: June 2013 find all complex zeros of a polynomial in exact value Ex: The zeros of f ( x ) = 5x 3 − 9 x 2 + 28 x + 6 are − • • • • 1 5 and 1 ± i 5 . identify the characteristics of the graph of a polynomial function, including zeros, turning points, and end behavior. Ex: f ( x ) =x 4 + 3x 3 − 3x 2 − 11x − 6 graph and analyze the function f ( x ) = ax n where n ∈ {natural numbers}, and its transformations graph and analyze the reciprocal (inverse) functions 1 1 f (x) = and f ( x ) = 2 and their transformations. x x −1 Ex: = +4 g (x) 2 ( x + 5) identify the characteristics of the graph of a rational P (x) where P(x) and Q(x) are function, f ( x ) = Q (x) polynomial functions: including intercepts, asymptotes (vertical, horizontal, and oblique), removable discontinuities, and end behavior. x 2 − 16 ( x + 3) Ex: f ( x ) = x2 − 9 ( x + 4) ( ( • ) ) identify a variation problem and set up an equation to represent the situation, including direct variation, inverse variation, joint variation, and combined variation. Ex: Simple interest varies jointly as principal and time. If $1000 left in an account for 2 years earned $110, find the amount of interest earned by $5000 for 5 years. 15 College Algebra K Level Scope and Sequence 2013-14 Last update: June 2013 Unit 8: Exponential and Logarithmic Functions Textbook Sections: 4.1 - 4.6 Enduring Understandings: Time Spent: 25 Days The student understands the basic terminology and characteristics of exponential functions and how to apply them. The student understands the basic terminology and characteristics of logarithmic functions and how to apply them. The student understands the inverse relationship between exponential and logarithmic functions. The student understands the equivalence relationship between exponential and logarithmic expressions and can utilize this relationship to solve problems. Vocabulary: inverse operation, one-to-one function, horizontal line test, inverse function, exponential function, compound interest, e, compounding continuously, logarithm, base, argument, logarithmic function, properties of logarithms, common log, natural log, Change-of- Base Theorem, exponential growth, exponential decay, carbon dating Student Learning Outcomes: MA1314-1. Demonstrate and apply knowledge of properties of functions, including domain and range, operations, compositions, inverses and piecewise defined functions. MA1314-2. Recognize, graph, and apply [polynomial, rational, radical,] exponential, logarithmic [and absolute value functions] and solve related equations. MA1314-3. Apply graphing techniques. The student will know… • • • • • • the definition of the inverse of a function. that an exponent can have a real irrational value the definition and characteristics of an exponential function. the number e and its value in application problems. the definition and characteristics of a logarithmic function. the properties of logarithms, including common and natural logarithms, and the change of base formula. The student will be able to… • • determine if a function is one-to-one by using the horizontal line test and/or algebraically. determine the inverse of a function and if the inverse is a function. x −3 4x + 3 and g ( x ) = , Ex: Given f ( x ) = x+4 1− x determine if f −1 ( x ) = g ( x ) • graph and analyze exponential functions = f ( x ) ax , a > 0 . • graph and analyze exponential function transformations. − 23 x +6 + 5 Ex: f ( x ) = • use the properties of exponents to solve exponential equations. Ex: 32− x + 4 = 8x −6 2 • Ex: r 3 = 4 use exponential functions to calculate values involving compound interest, including continuously compounded interest. r Ex:= A P 1 + n • nt Ex: A = Pert identify the logarithmic function as the inverse of a given exponential function and vice versa. 16 College Algebra K Level Scope and Sequence 2013-14 • Last update: June 2013 apply properties of logarithms evaluate and/or simplify expressions and solve equations. Ex: Simplify logm 5r 3 25 2 1 log5 5m2 + log5 25m2 3 2 7 Ex: Solve log4 x = 2 apply the change of base formula to evaluate expressions. graph and analyze logarithmic functions with transformations. x ) 3log2 ( − x ) − 4 Ex: f (= Ex: Simplify − • • • • use common logs and natural logs to solve problems involving logarithms. Ph of solutions Loudness of sound Earthquake intensity use the properties of exponents and logarithms to solve equations. Ex: 32 x +1 = 5x −3 3 Ex: log2 ( x + 6 ) − log2 ( x + 2 ) = • solve problems involving exponential growth and decay. Finance Population growth Radioactive decay Carbon dating Newton’s Law of Cooling 17 College Algebra K Level Scope and Sequence 2013-14 Last update: June 2013 Unit 9: Systems and Matrices Textbook Sections: 5.1, 5.2, 5.6, 5.7 Enduring Understandings: Time Spent: 26 Days The student understands that linear systems can be solved by different methods to achieve the same solution. The student understands that a system containing non linear equations can contain 1, 2, 3, 4 or no solutions. The student understands that there are many practical real-world applications that can be modeled with systems of equations and inequalities. The student understands that functions representing real-world situations can be optimized by representing a region of feasible solutions. Vocabulary: linear systems, independent, dependent, inconsistent, matrix, augmented matrix, Gauss-Jordan method, optimization, optimal amount, region of feasible solutions Student Learning Outcomes: MA1315-5. Recognize, solve and apply systems of linear equations using matrices. The student will know… • • • • the definition and characteristics of systems of equations. the basic terminology and structure of matrices. that matrices can be added, subtracted and multiplied. that the multiplication of matrices is not commutative and is dependent on the dimensions of the matrices. The student will be able to… • solve systems of linear equations by a variety of methods: substitution method, elimination method, or matrices. Ex: 4 x + 3y = −13 −x + y = 5 Ex: • x+y+z = 2 2x + y − z = 5 x − y + z =−2 determine is a system is one of the following: inconsistent (with no solution) independent (with one solution) dependent (with infinitely many solutions) Ex: 9 x − 5y = 1 −18 x + 10y = 1 • • determine the dimensions of a matrix and identify any square, column, or row. perform operations on matrices, including: addition −4 3 2 −8 Ex: = 12 −6 5 10 • • subtraction Ex: −10 −4 6 − −2 5 3 multiplication 1 2 −1 Ex: 3 4 7 scalar multiplication use equivalent matrices to find indicated values. −3 a c 0 = b 5 4 d convert a system of linear equations into an 18 College Algebra K Level Scope and Sequence 2013-14 Last update: June 2013 augmented matrix and vice versa. 2 x + 3y = 11 2 3 11 Ex: becomes x + 2y = 8 1 2 8 • 3x + 2y + z = 1 3 2 1 1 Ex: 0 2 4 22 becomes 2y + 4 z = 22 −1 −2 3 15 − x − 2y + 3z = 15 solve a system using the Gauss-Jordan method on a graphing calculator. Ex: x + y − 5z = −18 3x − 3y + z = 6 x + 3y − 2 z = −13 • give all solutions of nonlinear systems of equations. Ex: x 2 − y = 0 x+y = 2 Ex: 2 x 2 + 3y 2 = 5 • 3x 2 − 4y 2 = −1 graph two-variable inequalities on a coordinate plane. Ex: x + 2y ≤ 6 Ex: y ≤ x 2 − 4 • graph the solution set of a system of inequalities. Ex: x + y ≥ 0 2x − y ≥ 3 Ex: x + 2y ≤ 4 y ≥ x2 − 1 • use linear programming to solve real-world applications. Ex: Robin takes vitamin pills each day. She wants at least 16 units of Vitamin A, at least 5 units of Vitamin B, and at least 20 units of Vitamin C. She can choose between red pills, costing 10 cents each, that contain 8 unit of Vitamin A, 1 unit of Vitamin B, and 2 units of Vitamin C; and blue pills costing 20 cents each that contain 2 unit of Vitamin A, 1 unit of Vitamin B, and 7 units of Vitamin C. How many of each pill should she buy to minimize her cost and yet fulfill her daily requirements? 19