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Modesto Junior College MATH 121 Course Outline Effective Date: 05/05/2008 Printed On: 10/30/2007 11:50:42 AM I. COURSE OVERVIEW The following information is what will appear in the MJC 2008-2009 Catalog. MATH 121 - Pre-Calculus 1 5 Unit(s) Prerequisite: Satisfactory completion of MATH 090 or qualification by the MJC assessment process. A one-semester College Algebra course or, together with Math 122, a twosemester Precalculus course sequence. Emphasis on algebra skills essential for success in calculus. Topics include: review of linear, quadratic, rational, radical, exponential and logarithmic equations; functions and graphs; synthetic division; complex roots of polynomials; the Fundamental Theorem of Algebra; applications of exponential and logarithmic equations; sequences and series; mathematical induction; combinatorics and probability. A-F and CR/NC. Applicable to the Associate Degree. Transfer to CSU and UC. MJC-GE - D2; CSU-GE - B4; IGETC - 2A. II. LEARNING CONTEXT Given the following learning context, the student who satisfactorily completes this course should be able to achieve the goals specified in section III: Desired Learning. 1. COURSE CONTENT A. REQUIRED A. Algebra Review 1. Radicals; Rational Exponents 2. Polynomials and Rational Expressions 3. Completing the Square; the Quadratic Formula B. Equations and Graphs Topics from Algebra and Geometry Solving Equations Setting Up Equations: Applications Inequalities Rectangular Coordinates; Graphs; Circles Lines Linear Curve Fitting 1. 2. 3. 4. 5. 6. 7. C. Functions and Their Graphs Functions Graphing Techniques: Transformations Operations on Functions; Composite Functions Mathematical Models: Constructing Functions 1. 2. 3. 4. D. Polynomial and Rational Functions Quadratic Functions; Curve Fitting Polynomial Functions Rational Functions Synthetic Division The Real Zeros of a Polynomial Function Complex Numbers; Quadratic Equations with a Negative Discriminant Complex Zeros; Fundamental Theorem of Algebra 1. 2. 3. 4. 5. 6. 7. E. Exponential and Logarithmic Functions 1. One-to-One Functions; Inverse Functions 2. Exponential Functions 3. Logarithmic Functions 4. Properties of Logarithms; Curve Fitting 5. Logarithmic and Exponential Equations 6. Compound Interest 7. Growth and Decay 8. Logarithmic Scales F. Sequences; Induction; Counting; Probability 1. Sequences 2. Arithmetic Sequences 3. Geometric Sequences; Geometric Series 4. Mathematical Induction 5. The Binomial Theorem 6. Sets and Counting 7. Permutations and Combinations 8. Probability 2. ENROLLMENT RESTRICTIONS 1. Prerequisite(s): Satisfactory completion of MATH 090 or qualification by the MJC assessment process Prerequisite Skills Before entering the course, the student will be able to: A. graph lines and find the equation of a line, given sufficient information. B. effectively use function notation to describe mathematical relationships. C. determine the domain and range of a given function. D. given a relation between two variables, determine if the relation is a function. E. graph linear, quadratic, absolute value, and simple cubic functions using transformations. F. solve systems of linear equations in two or three variables by choosing the most effective method for the given problem. G. solve linear, quadratic, absolute value, and rational inequalities. H. solve quadratic equations with real and complex solutions by completing the square and using the quadratic formula. I. graph quadratic functions by determining and using the vertex and stretching constant. J. add, subtract, multiply, and divide complex numbers. K. convert radicals to rational exponents and vice versa. L. add, subtract, multiply, divide, or compose two given functions. M. find the inverse of a given function. N. graph exponential and logarithmic functions using transformations. O. solve exponential and logarithmic equations. P. simplify expressions using the properties of logarithms. Q. identify the equations for and sketch the graphs of conic sections. R. list a requisite number of terms of a given arithmetic, geometric, or recursive sequence. S. determine the general term of a given arithmetic or geometric sequence. T. determine the sum of a fixed number of terms of an arithmetic or geometric series, and determine the sum of an infinite geometric series when it exists. U. solve problems involving permutations, combinations, and probability. V. given an applied problem, analyze the problem, select an appropriate mathematical model, and use that model to solve the problem. Models used include: linear, quadratic, exponential, logarithmic, systems, and conic sections. 3. HOURS OF INSTRUCTION PER TERM Prorated Hours and Units TYPE of HOURS TERM HOURS UNITS EARNED Lecture/Discussion 87.5 Total Units Earned: 5 5 4. TYPICAL METHODS OF INSTRUCTION Instructors of this course might conduct the course using the following methods: Face-to-face education 1. 2. 3. 4. Lectures, discussions, or other presentations that develop theoretical material Demonstrations of mathematical techniques, applications, and problemsolving strategies by both instructor and students Applications of material to specific problems (Optional) Demonstrations of concepts using a computer algebra system or graphing calculator 5. TYPICAL ASSIGNMENTS A. Quality: Assignments require the appropriate level of critical thinking 1. Given a fourth degree polynomial with integer coefficients, use the Rational Roots Theorem, the Fundamental Theorem of Algebra, and synthetic division to find the complete factorization of the polynomial over the complex number system. 2. Graph a given rational function, citing details including the domain of the function, the equations of its vertical and/or horizontal asymptotes, coordinates of all intercepts, and intervals on which the function is increasing and decreasing. 3. A piece of charcoal is found to contain 30% of the carbon-14 that it is assumed to have had originally. When did the tree from which the charcoal came die? (Use 5600 years as the half-life of carbon-14.) B. Quantity: Hours spent on assignments in addition to hours of instruction (lecture hours) 1. Weekly homework exercises of approximately two hours per hour of class 2. Preparation for three to five midterm examinations and the comprehensive final exam 6. TEXTS AND OTHER READINGS A.Required Texts: Precalculus, 5th Edition, James Stewart, Lothar Redlin, and Saleem Watson, 2007 B. Other reading material: III. DESIRED LEARNING A. COURSE GOAL As a result of satisfactory completion of this course, the student should be prepared to: effectively manipulate algebraic expressions and solve various types of equations as will be encountered in a first-semester calculus course. By significantly strengthening their algebra skills, students successfully completing this course will be far better prepared for the rigors and mechanics of calculus. B. STUDENT LEARNING GOALS Mastery of the following learning goals will enable the student to achieve the overall course goal. REQUIRED LEARNING GOALS Upon satisfactory completion of this course, the student will be able to: 1. exhibit the connection between radicals and rational exponents. 2. add, subtract, multiply, and divide polynomial and rational expressions. 3. solve quadratic equations by factoring, completing the square, or using the quadratic formula. 4. solve linear, quadratic, absolute value, and rational equations and inequalities. 5. solve applied problems of the above types. 6. graph functions via tables of values, transformations, and coordinate-wise operations. 7. add, subtract, multiply, divide, and compose functions. 8. calculate the two forms of the difference quotient for a given function. 9. construct functions to model given problems. 10. graph quadratic, polynomial, and rational functions. 11. find all roots (real and complex) of a polynomial by using synthetic division. 12. state and effectively use the Fundamental Theorem of Algebra. 13. find the inverse of a given one-to-one function. 14. graph exponential and logarithmic functions. 15. 16. 17. 18. 19. 20. 21. apply the properties of logarithms to various problems. solve exponential and logarithmic equations. solve problems involving compound interest, exponential growth and decay, Newton’s Law of Cooling, and logarithmic scales. classify sequences as arithmetic, geometric or neither. calculate general terms and finite sums for arithmetic and geometric sequences and series, and, when possible, calculate the sum of an infinite geometric series. prove theorems using the Principle of Mathematical Induction. solve probability problems using the Fundamental Principle of Counting, permutations, and combinations. IV. METHODS OF MEASURING STUDENT PROGRESS A. FORMATIVE ASSESSMENT: 1. Regular homework assignments are reviewed in class 2. Question and answer sessions, both specifically related to homework exercises and broadly related to general concepts being covered. 3. Quizzes, worksheets, or group work. 4. Midterm examinations B. SUMMATIVE ASSESSMENT: A comprehensive final examination is required.