7-38. Let represent the price of first painting, , , The most expensive painting sold for x $10,000. 7-39. a: Range is 68. Both 39 and 107 appear to be outliers. b: Median = 70, upper quartile = 79.5, lower quartile = 58.5 7-40. a: or b: meters, meters 7-41. a: and , represents weeks, represents total money. x y b: They will have the same amount between weeks 15 and 16. or or 7-42. a: b: c: or d: e: f: Lesson 7.2.2 7-49. a: Line A because it increases most quickly. b: 5 c: They are equal. A, D, C B 7-50. 7-51. 0. A line that is flat or does not go up. 7-52. a: 30 % b: Water park (30%) and Amusement Park (29%) c: Answers will vary. 7-53. Let = # students, = # adults, , , 1296 students s a 7-54. Lesson 7.2.3 7-61. slope = 7-62. a: b: c: 7-63. a: = 5.5 b: = 42 c: = d: = 2 x x x x –24 7-64. , . represents the number of hours she swims. She will swim for 1.5 hours and play x volleyball for 3 hours.
7-38. Let x represent the price of first painting, , , The most expensive painting sold for $10,000. 7-39. a: Range is 68. Both 39 and 107 appear to be outliers. b: Median = 70, upper quartile = 79.5, lower quartile = 58.5 7-40. a: or b: meters, meters 7-41. a: and , x represents weeks, y represents total money. b: They will have the same amount between weeks 15 and 16. 7-42. a: or b: c: or d: or e: f: Lesson 7.2.2 7-49. a: Line A because it increases most quickly. b: 5 c: They are equal. 7-50. A, D, C B 7-51. 0. A line that is flat or does not go up. 7-52. a: 30 % b: Water park (30%) and Amusement Park (29%) c: Answers will vary. 7-53. Let s = # students, a = # adults, , , 1296 students 7-54. Lesson 7.2.3 7-61. slope = 7-62. a: b: c: 7-63. a: x = 5.5 b: x = 42 c: x = –24 d: x = 2 7-64. , . x represents the number of hours she swims. She will swim for 1.5 hours and play volleyball for 3 hours.