SAMPLE SEMESTER EXAM Advanced Algebra & Trigonometry Name _____________________________________ Chapter One: Equations & Inequalities 21 5 Leave answers in reduced improper fraction form! Directions: Evaluate each expression if: a = -2, b = 3, c = 1. a – 2b + 3c 2. 2a b 3 3. a 3 b2 a c 4. 2 3b 2a 5c Directions: Simplify Completely 5. -4(3x + y) – 2(x – 5y) 6. 6(9a – 3b) – 8(2a + 4b) Directions: Solve each equation or inequality 7. 3(2x + 3) – 4(3x – 6) = 15 9. 8 x 3 5 8. x 12 3 x x 6 5 4 2 10. 2 x 18 x 5 Directions: Solve for the variable indicated 11. 2k – 3m = 16, for “k” 12. A 1 h a b , for “h” 2 Directions: Solve and Check. 13. 3 x 4 21 14. 3 3 x 2 12 6 Directions: Solve and graph on the number line 15. 6x – 1 > 17 OR 8x 6 10 16. 2 5 x 3 9 17. 2 x 7 1 18. 3 x 6 8 17 Chapter Two: Linear Relations & Functions Directions: Find each value if f(x) = -3x + 2 and g(x) = x2 – 4 19. f(-2) 20. f(2a) 21. 3[g(-1)] Directions: Answer 22. Write in Standard form: 2 3 1 y x 0 3 4 6 23. Find the slope of the line that goes through the points (1, 4) and (-2, 9) 24. Find the equation of the line that goes through the points (1, 4) and (-2, 9) 25. Find the equation of the line that passes through the point (4, 2) that is perpendicular to the line y = -2x + 3. 26. Find the equation of the line that passes through the point (4, 2) that is parallel to the line y = -2x + 3. Directions: Graph 27. 2x + 3y = 24 Identify the slope, y-int & x-int x if x 2 28. f x x 2 if 2 x 2 5 if x 2 29. y = (x + 2)2 – 3 Describe the transformation of this function in relation to the parent function y = x2 30. y 3 x 1 2 Chapter Three: Systems of Equations & Inequalities Directions: Solve by using the Method of Elimination 31. y 3x 13 1 y x5 3 Directions: Solve by using the Method of Substitution 32. 3y – 5x = 0 2y – 4x = -2 Directions: Solve by Graphing 33. 3x + 4y = 8 x – 3y = -6 Directions: Graph the system of inequalities. Name the vertices of the feasible region and then find the max and/or minimum values of the function for the region. 34. 3 x 6 y 3 x 12 y 2 x 6 f(x, y) = 4x – 2y Directions: Use the matrices below to simplify #35-37 9 1 A 1 2 35. 2B + 3A 1 4 B 3 7 36. CA 3 4 C 1 2 5 2 37. AB – BA Directions: Solve the System using either Elimination/Substitution –OR- Cramer’s Rule. 38. 5x + 2y = 4 3x + 4y + 2z = 6 7x + 3y + 4z = 29 Chapter Four: Quadratic Functions & Relations Directions: Solve each quadratic equation using the method indicated. 39. Graph: 2x2 – 4x – 5 = 0 40. Factor: 6x2 – 31x + 5 = 0 41. Factor: x2 + 2x = 8 42. Complete the Square: x2 – 2x + 8 = 0 43. Complete the Square: 2x2 + 4x – 3 = 0 Directions: Find the Discriminant, determine the Nature of the roots then solve using the Quadratic Formula 44. x2 – 4x – 45 = 0 45. 2x2 + 5x + 9 = 0 Directions: Solve each inequalitiy by the method indicated. 46. Graph: y > x2 – 6x + 8 47. Algebraically: Write answer in {set} or (interval) notation 2x2 + 3x – 20 > 0 Direction: Write each answer in simplest “i” form 4i 48. (3 – 4i) – (9 – 5i) 49. 4i 50. (6 + 5i)(3 – 2i) Chapter Five: Polynomials & Polynomial Functions Directions: Simplify. Assume that no variable equals 0. 51. (3x2y-3)(-2x3y5) x2 y 3 54. 4 xy 52. 4y(3xy – y) 4x 3 3a4 b3 c 6a2 b5c3 2 55. (4x2 – 6x + 5) – (6x2 + 3x – 1) Directions: Use Long Division 57. 53. 56. (x + y)(x2 + 2xy – y2) Directions: Use Synthetic Division 8 x2 13 x 20 2 x 5 58. 3x 3 16x2 9x 24 x 5 Directions: Describe the end behavior of the graph. Then determine whether it represents an even or odd degree polynomial function and find the number of zeros. 59. Directions: Evaluate. 60. Find p(-3) if p x 2 3 1 2 x x 5x 3 3 61. Find 3f(a – 4) – 2g(a) if f(x) = x2 + 3x and g(x) = 2x2 – 3x + 5 Directions: Use the function f(x) = x3 – 2x2 – 3x for #62-65 62. Graph: 63. Estimate the x-coordinates at with the relative max & min occur 64. State the zeros of the function. 65. State the domain and range of the function. ANSWER KEY TO SAMPLE EXAM Advanced Algebra & Trigonometry 18. See Graphs 29 11 35. 9 20 52. 12xy2 – 4xy 19. 8 23 5 3 36. 7 47 9 53. 20. -6a + 2 1 34 37. 27 1 x2 54. 2 y 21. -9 38. (2, -3, 6) 55. -2x2 – 9x + 6 5. -14a + 6b 22. 9x – 8y = 2 39. x = -1, 3 See Graphs 56. x3 + 3x2y + xy2 – y3 6. 38a – 50b 23. m 1 40. x ,5 6 57. 2x2 + x – 4 7. 3 5 17 24. y x 3 3 41. x = -4, 2 58. 3 x2 x 4 8. 12 1 25. y x 2 42. x 1 i 7 59. as " x " , f(x) as " x " , f(x) 9. x < 25 26. y = -2x + 10 43. x 1. 23 5 2. 32 92 3. 5 4. 25 4 10. x < -2 5 3 27. m 23 , b 8, x int 12 See Graphs 2 10 2 44. Disc: 196 Nature: 2 real Ans: x = -5, 9 45. Disc: -47 Nature: 2 comp 5 i 47 Ans: x 4 a2 2b2 c2 60. 0 61. –a2 – 9a + 2 11. k 16 3m 2 28. See Graphs 12. h 2A a b 29. See Graphs 46. See Graphs 1 63. x ,2 2 13. x = 3, 11 30. See Graphs 47. See Graphs 64. x = -1, 0, 3 14. 31. (-3, 4) 48. -6 + i 15. See Graphs 32. (3, 5) 49. 16. See Graphs 33. (0, 2) See Graphs 50. 28 + 3i 17. 34. See Graphs 51. -6x5y2 4 16i 17 4 x5 62. See Graphs 65. D : , R : , 15. 29. 16. 18. 27. 30. 33. 28. 46. 3 , 3) 2 Min = -20 (-2, 6) 34. Max = 0 @ ( 47. 39. 62.
© Copyright 2024