A-14 ANSWERS 31. 25 24 23 22 21 0 All real numbers 4 5 1 2 3 32. 25 24 23 22 21 0 All real numbers 4 5 1 2 3 33. 25 24 23 22 21 0 4 5 1 2 3 34. 21029 28 27 26 25 21 0 23 24 22 35. 3 21 36. 1 24 37. 6 10 38. 210 211 212 213 214 29 28 27 26 25 21 0 23 24 22 39. 25 24 23 22 21 0 4 5 1 2 3 40. 25 24 23 22 21 0 4 5 1 2 3 41. 25 24 23 22 21 0 4 5 1 2 3 42. 25 24 23 22 21 0 4 5 1 2 3 43. 25 24 23 22 21 0 4 5 1 2 3 44. 25 24 23 22 21 0 4 5 1 2 3 45. 22 21 0 1 2 3 7 8 4 5 6 46. 25 24 23 22 21 0 4 5 1 2 3 SECTION 6.6, PAGE 348 For Exercises 9–16, see the following figure. 2 4 15 9 11 10 13 14 16 12 6 22 x 24 26 2 4 6 y 24 26 22 For Exercises 17–24, see the following figure. 24 26 22 2 6 x 22 24 26 2 4 6 y 23 24 18 20 22 19 21 17 43. y 5 x 1 1 4 2 24 2 4 22 24 (2, 3) (0, 1) (21, 0) x y 22 44. (2, 0) (0, 22) (3, 1) y 5 x 2 2 4 2 24 22 2 4 22 24 x y 45. (1, 1) (0, 21) (21, 23) 4 2 24 22 2 4 24 y 5 2x 2 1 x y 22 46. 2 22 24 4 22 24 (0, 3) (1, 1) (2, 21) y 5 22x 1 3 x y 4 47. 22 2 4 6 22 x 24 2 4 6 y (0, 6) (1, 3) (2, 0) y 1 3x 5 6 48. x y 2 2 24 22 4 8 y 2 4x 5 8 (–2, 0) (21, 4) (0, 8) –2 49. x y 2 22 2 4 24 22 4 6 y 5 x 1 4 (2, 5) (0, 4) (22, 3) 1– 2 50. 26 24 22 2 4 6 x 24 2 4 y (23, 23) (0, 21) (3, 1) 3y 5 2x 2 3 22 51. x y 2 2 24 22 24 4 4 (0, 0) (3, 1) (23, 21) y 5 x 1– 3 22 52. x y 2 2 22 24 22 24 4 4 (3, 22) (23, 2) (0, 0) y 5 2 x 2– 3 53. x y 2 2 22 24 4 4 (0, 2) (2, 0) x 1 y 5 2 22 24 54. x y 2 2 22 24 4 4 (0, 24) (4, 0) x 2 y 5 4 22 24
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