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Math 2 Final Exam Review Name: Period: MM2A3. Students will analyze quadratic functions in the forms f ( x) ax 2 bx c and f ( x) a( x h)2 k . 1. The domain of the given function is: a) 3 x 1 c) 1 x b) all real numbers d) 1 x 2. The range of the given function is: a) 1 y c) y 1 b) all real numbers d) y 1 3. The vertex form of the equation y x 2 6 x 9 is: a) y ( x 3)2 b) y ( x 81)2 c) y ( x 3)2 d) y ( x 6)2 9 4. Find the solution(s) to the given function: b) 5 d) 5, 0 a) 0, 5 c) 2, 2 MM2A4. Students will solve quadratic equations and inequalities in one variable. 5. Solve x 2 6 x 40 0 algebraically. a) x 4 or x 10 b) 5 x 11 c) x 5 or x 11 6. Find the average rate of change for the function on the given interval. f x 2x2 5x 7; 2 x 1 a) 3 b) 1 c) 4 10 7. Find the sum. a) 285 k 2 d) no real solutions d) 7 3 k 1 b) 415 c) 412 d) 455 MM2N1. Students will represent and operate with complex numbers. 8. Find the product: (3 3i )( 4 9i) a) 12 42i b) 33 17i 9. Simplify: (3 5i)2 a) 28 21i c) 44 45i b) 13 84i 10. Find the difference (15 11i ) (14 13i) a) 32 28i b) 29 6i d) 39 15i c) 16 30i d) 21 20i c) 1 24i d) 1 6i MM2A4. Students will solve quadratic equations and inequalities in one variable. 11. Describe the nature of the roots of the equation: 3x 2 2 x 2 0 a) 1 real root c) 2 real irrational roots b) 2 real rational roots d) 2 imaginary roots 12. Solve 3( x 2)2 75 a) x 3, x 7 b) x 3, x 7 c) x 2, x 8 d) No Real Solutions 13. Solve x 2 2 4 x a) 2 6, 2 6 b) 4 24, 4 24 c) 2 6, 2 2 6 d) No Real Solutions MM2G1. Students will identify and use special right triangles. 14. In a 30-60-90 right triangle, the length of the short leg is 7. Find the length of the hypotenuse. 3 a) b) 7 3 c) 7 2 d) 14 7 15. The side of an equilateral triangle is 10 meters. What is the height of the triangle? a) 5 3 m b) 5 2 m c) 100 m d) 5 m c) 16 2 d) 32 16. Find the diagonal of the rectangle: a) 160 b) 16 3 16 30 17. The length of a diagonal of a square is 14 inches. What is its perimeter? a) 28 2 b) 7 2 c) 7 d) 14 2 18. A leg of an isosceles right triangle is 12 cm. What is the hypotenuse? a) 6 2 b) 6 3 c) 6 d) 12 2 19. Find X and Y a) x 9.5 3, y 9.5 b) x 9.5, y 9.5 3 c) x 9.5, y 9.5 2 d) x 9.5, y 9.5 MM2G2. Students will define and apply sine, cosine, and tangent ratios to right triangles. B 5 20. Given ABC to the right, what is sin B = __? 3 C a) 3 4 b) 4 3 c) 3 5 8 . What is sin A = __? 10 b) 0.8 c) 1.67 d) 4 4 5 21. In a right triangle, cos A = a) 1.25 22. In right ABC , A and B are the acute angles. If sin B = a) 13 8 b) 12 13 c) 8 13 d) 0.6 8 , what is cos A = __? 13 d) Cannot be determined A 23. A ladder is leaning against a house so that the top of the ladder is 14 feet above the ground. The angle with the ground is 46. How far is the base of the ladder from the house? a) 14.5 feet b) 13.52 feet c) 9.73 feet d) 20.15 feet 24. A man that is 6 ft tall casts a shadow 18 ft long. Find the angle of elevation of the sun. 6 ft ??? 18 ft a) 18.43 degrees b) 19.47 degrees c) 71.57 degrees d) 70.53 degrees 25. Find the height in feet of the Eiffel Tower if the angle of elevation from the base is 82.34 and the distance from the center to the outside of each leg is 72 feet. Round your answer to the nearest tenth. a) 448.22 feet b) 633.89 feet c) 553.83 feet d) 535.38 feet 26. Given right triangle ABC. If tan A =0.53, find AC. Round your answer to the nearest tenth. B a) 4.2 b) 8.9 c) 15.1 8 d) 18.2 A C MM2G3. Students will understand the properties of circles. 27. In circle R, mSRV 74 , mTRU 41 , and ST is a diameter. Find mVRT . a) b) c) d) 116 139 115 106 28. In circle D, the diameter is 26 units and BD=5. Find the measure of AC . If necessary, round to the nearest tenth. a) b) c) d) 12 5 24 13.9 29. JK is tangent to circle L at K and JM is tangent to circle L at M. Find the value of x. a) b) c) d) 7 5 9 3 30. MN is tangent to LM . Find LN. If necessary, round to the nearest tenth. a) b) c) d) 8.2 6.0 8.1 6.1 31. Find the value of x. a) b) c) d) 7 2 7 2 2 7 7 2 32. Find the value of x. Round to the nearest tenth if necessary. a) b) c) d) 20 9 16 11 33. Find the value of x. Round to the nearest tenth if necessary. a) b) c) d) 18 18.3 13.8 13.9 34. Find the perimeter of the shaded region. a) b) c) d) 58.27 30.4 28.27 43.27 35. Find the area of the shaded region. a) b) c) d) 21.46 cm2 78.54cm2 115.7 cm2 58.54 cm2 36. Find the surface area of a sphere whose diameter is 12.6 cm. a) 1995.04 cm2 b) 158.34 cm2 c) 79.17 cm2 d) 498.76 cm2 37. Find the volume of a sphere whose radius is 12 in. a) 150.80 in2 38. Find the value of x and y. a) b) c) d) x=68; y=104 x=76; y=112 x=112; y=76 x=104; y=68 39. Find m1 . a) b) c) d) 68 74 37 62 b) 904.78in2 . c) 7238.23 in2 d) 603.19 in2 40. Find m1 . a) b) c) d) 24 66 34 56 MM2D1: Using sample data, students will make informal inferences about population means and standard deviations 41. In the accompanying display, which has the larger mean and which has the larger standard deviation? a) Larger mean, A; larger standard deviation, A b) Larger mean, A; larger standard deviation, B c) Larger mean, B; larger standard deviation, B d) Larger mean, B; larger standard deviation, A 42. Salaries of professional football players take on a left-skewed distribution. If we were to take both the mean and mode of this distribution, what would be true about the relationship between these two measures? a) Mean salary is equal to mode salary b) Mean salary is less than mode salary c) Mean salary is greater than mode salary d) There is not enough information provided to answer. 43. The standard deviation of 16 measurements of people’s weights (in pounds) is computed to be 8.70. What is the variance of these measurements? a) 17.4 b) 2.95 c) 34.8 d) 75.69 44. There are five children in a room, ages ten, eleven, twelve, thirteen, and fourteen. If a twelve-yearold child enters the room the a) b) c) d) mean and standard deviation will stay the same mean and standard deviation will increase mean will stay the same, and standard deviation will increase mean will stay the same and standard deviation will decrease 45. Find the standard deviation for the following data set: {4, 5, 7, 8, 5, 4} a) 2.25 b) 1.5 c) 3 d) 5.5 46. The scores on a university examination are normally distributed with a mean of 80 and a standard deviation of 5. If the middle 68% of students will get a “C”, what is the lowest mark that a student can have and still be awarded a C? a) 85 b) 70 c) 75 d) 73 MM2A1. Students will investigate step and piecewise functions, including greatest integer and absolute value functions. 3x 2, x 3 47. Evaluate f (3) if f x . x 1, x 3 a) 2 b) 11 c) -4 d) 8 3, x 0 48. What is the range of the following function f x ? 3, x 0 a) 3 b) -3 c) 3, -3 d) All real numbers 49. What function is represented by the graph. x 3, x 3 a) f x x 1, x 1 y x 3, x 0 b) f x x 1, x 0 x x 3, x 0 c) f x x 1, x 0 x 3, x 0 d) f x x 1, x 0 50. Solve for x: 10 x 4 a) 6 b) -6 c) 6, -6 d) 2.5, -2.5 b) x 12 c) x .5 or x 12 d) x 2 or x 12 51. Solve: 4 x 7 3 23 a) x 2 MM2A2. Students will explore exponential functions. 52. Solve for x: 22 x 2 64 a) 1 b) 2 c) 3 d) none of these 53. A certain population increases according to the model P (t ) 250e0.47t . Use the model to determine the population when t = 5. Round your answer to the nearest integer. a) 400 b) 2621 c) 1998 d) 1597 b) 16a 2b8c10 c) 16a 2b8c10 d) 4a 3b6c 7 54. Simplify: (4ab4c5 )2 a) 4a 2b8c10 55. Which of these describes the graph of f(x) = 2x + 1? a) It has a vertical asymptote at x = 1. c) It has a vertical asymptote at x = 2. b) It has a horizontal asymptote at y = 1. d) It has a horizontal asymptote at y = 0. 56. How would you translate the graph of f(x) = 3x to produce the graph of a) b) c) d) f(x) = 3x-1 + 2? Translate the graph up one unit, and right 2 units Translate the graph up 2 units, and left 1 unit Translate the graph up 2 units, and right 1 unit Translate the graph down one unit and right 2 units MM2A5. Students will explore inverses of functions. 57. Which is an equation for the inverse of the function y = 2x - 3? a) y 2x 3 2 b) y 3x 2 c) y x3 2 d) y x 3 2 1 2 58. Which of the following is an equation for the inverse of the function f ( x) x ? 3 3 3x 2 2 1 c. f 1 ( x) x 2 3 b. f 1 ( x) 3x 2 d. f 1 ( x) 3x 2 a. f 1 ( x) MM2D2. Students will determine an algebraic model to quantify the association between two quantitative variables. 59. Name the type of model suggested by the graph. a) b) c) d) linear quadratic exponential cubic 60. For which graph of a set of data is a linear function the best model? a) b) c) 61. This graph plots the number of wins in the 2006 and 2007 seasons for a sample of professional football teams. What is the equation of the median-median line for these data? a) y = x 1 3 b) y = 2x - 9 c) y = x + 1 d) y = x – 1 62. The graph above graph plots the number of wins in the 2006 and 2007 seasons for a sample of professional football teams. The linear regression model for this data is y =1.10x−2.29. Based on this model, what is the predicted number of 2007 wins for a team that won 5 games in 2006? a) 3.2 b) 4.5 c) 5.5 d) 6.6