Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Algebra 1 - 2nd Semester Review (Spring 2014)* Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. Simplify the expression. 1) a 9) (1 point) a 10) (1 point) a b b b (1 point) A scuba diver has a taut rope connecting the dive boat to an anchor on the ocean floor. The rope is 140 feet long and the water is 40 feet deep. To the nearest tenth of a foot, how far is the anchor from a point directly below the boat? a 134.2 ft b 18,000 ft Solve the inequality. 2) (1 point) 11) a 3) ap 12) (1 point) a1 4) b (1 point) b –1 > 5 33 (1 point) 2(b ab > 14 b – 8) > 12 bb > 6 Write the number in scientific notation. (1 point) a b 13) (1 point) 8,670,000,000 a 5) 14) (1 point) a 6) b (1 point) a 7) (1 point) a 8) b (1 point) b (1 point) Which b kind of function best models the data in the table? Graph the data and write an equation to model the data. x y 0 –1 1 –2 2 –3 3 –4 4 –5 a b y y 6 6 4 4 2 2 –6 –4 –2 –2 2 4 6 x –6 –4 –2 –2 –4 –4 –6 –6 linear; y = –x – 1 a (–4, 20) 2 2x + y = - 10 4 +6y = x- 8 4x a (3, –4) b (1, –12) Factor the expression. Find factors of the LAST number that + or - to give you middle term quadratic; y = x2 – 21) 1 French club is sponsoring a bake sale. If their goal is to raise at least $140, how many pastries must they sell at $3.50 each in order to meet that goal? Write and solve an inequality. a ; b ; – x – 42 – 7)(x + 6) b (x – 7)(x – 6) (1 point) x2 (1 point) The 22) 24) (1 point) a 4 –8 b –6 –4 –2 0 2 4 6 a 3 3 4 –8 –6 –4 25) + 10d + 9 + 9)(d + 1) b (d + 9)(d – 1) – 49 (sqrt 1st term - sqrt last term)(sqrt 1st term + sqrt last term) (1 point) r2 a (r 8 b (1 point) d2 a (d Solve the inequality. Then graph your solution. a (1 point) a 23) 16) –2 – 7)(r + 9) 0 (1 point) a –8 –4 –2 0 2 4 6 4 6 – 7)(r + 7) 8 + 11g – 35 – 5)(2g + 7) b (3g + 5)(2g – 7) Solve the equation by using the Quadratic Formula. –8 –6 –4 Round –2 0 to 2the 4nearest 6 8tenth if necessary. b –6 2 b (r (1 point) 6g2 a (3g 17) 8) (1 point) BONUS: a (x 15) b (6, 8) 8 Simplify the product. 18) (1 point) 6x7(4x2 + 6y3) a 24x9 + 36x7y3 b 10x9 + 12x7y3 26) 27) b a=1 (1 point) c = -3 19) (1 point) *BONUS: P(–10, 10) and R(2, 6) b = 22 c = -3 a Find the midpoint of each segment with the given endpoints. a=1 (1 point) a b b = 22 Simplify the difference. 28) – 4w – 8) – (2w2 + 3w – 6) a 2w – 1w – 14 b 2w2 – 7w – 2 (1 point) (4w2 a 14 2 29) (1 point) Factor a 6(r the expression completely: . + 4)(r - 10) b 4(r Solve the equation. Then check your solution. 35) (1 point) 31) b c –8 5 b –4 –2 0 2 4 6 8 –8 37) Remember: You can NOT (1 point) have a radical in the denominator (1 point) 2 1 b 121 2 a 3 33) –6 Simplify the radical expression by rationalizing the denominator. c Solve the equation. Then check your solution. 32) real numbers that are greater than –6 and less than 6 a –6 < x < 6 b –6 x 6 (1 point) all (1 point) a4 b1 Write a compound inequality that represents each situation. Graph your solution. 36) a (1 point) a –3 + 3)(r + 5) Simplify the radical expression. 30) b2 (1 point) What a c 24 is the solution of the graphed system of 38) equations? b the distance from H(2, 3) to K(4, –3). If necessary, round to the nearest tenth. (1 point) Find y 4 3 2 a 7.1 b 40 c 5.1 d 6.3 1 –4 –3 –2 –1 –1 1 2 3 4 Simplify the product using FOIL. forget to combine your middle terms. x –2 –3 39) –4 a (-2, 34) -2) b (-2, (1 point) What (1 point) a 2) c (2, -2) is the x-value of the solution to this system of equations? Don’t b c Simplify the expression. Write the answer using scientific notation. –6 –4 – 40) (1 point) a 1.6 10 b 6.3 10 17 c 6.3 10 17 47) 64 Find the square. 41) Use This Equation: Plug a² + 2ab + b² (1 point) in values for (am + b)²: a a b Write the number in standard notation. 48) (1 point) *BONUS: 2x a x < 7 or x > 5 –10 –8 43) A bag contains 16 red checkers and 16 black checkers. Anne removes 1 black checker and 2 red checkers from the bag and does not replace them. She then reaches into the bag and selects a checker at random. What is the probability that the checker is red? b Solve the compound inequality. Graph your solution. 42) (1 point) **BONUS: –6 –4 (1 point) Simplify –2 – 2 < –12 or 2x + 3 > 7 b 0 2 4 6 8 (1 point) a 0.0907 b 0.907 x < –5 or x > 2 –5 10 49)–2 –4 –3 (1 point) What –1 0 1 below? is3 the area of the rectangle shown 4 5 Area = length * width 2 the sum. (4u + 4u + 2) + (6u3 – 2u + 8) 3 a –2u3 2 – 2u2 + 4u – 10 b 10u3 + 4u2 – 2u + 10 a b c Find the length of the missing side. If necessary, round to the nearest tenth. 50) 44) (1 point) Write the polynomial in standard form. 4g – g3 + 3g2 – 2 (1 point) – 3g2 + 4g – 2 b –2 + 4g + 3g2 – g3 4g – 2 d –g3 + 3g2 + 4g – 2 a g3 c 5 c 3g3 – g2 + 14 a 14.9 b 361 Short Answer Factor the polynomial. 45) 46) + 64w8 a 8w8(3w4 + 8) b 8w7(3w5 + 8w) 51) (1 point) The interior angles of a triangle add up to ____________ °. 52) (1 point) How 53) (1 point) How (1 point) 24w12 c 8(3w12 + 8w8) (1 point) Tina can type at least 60 words per minute. Write and graph an inequality to model this situation. a b 0 10 20 30 40 50 60 70 80 90 100 110 0 10 20 many degrees in a circle? __________° many degrees in a straight line? ____________° 30 40 (150 60 What 70 80 is90 110 54) point) the100Pythagorean Theorem? _________________ 55) (1 point) A(n) ____________________ triangle measures less than 90°. 56) (1 point) A(n) ___________________ triangle measures greater than 90°. Algebra 1 - 2nd Semester Review (Spring 2014)* Answer Section MULTIPLE CHOICE 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) 14) 15) 16) 17) 18) 19) 20) 21) 22) 23) 24) 25) 26) 27) 28) 29) 30) 31) 32) 33) 34) 35) 36) 37) 38) 39) 40) A A A A A A A B A A B A A A A A A A A B A A A B A A A B A B A C C A A A A D A B 41) 42) 43) 44) 45) 46) 47) 48) 49) 50) A B B A A A A A C D SHORT ANSWER 51) 52) 53) 54) 55) 56) 180 360 180 a² + b² = c² Acute Obtuse