Core Connections Algebra 2

Recommendations

Info

Lesson 1.2.4 1-112. a: A portion of the trip at a specific speed. b: About 400 miles. It is the total distance on the graph. c: Graph shown below – a speed of approximately 30 mph for 1 hour, approximately 80 mph for the next 3 hours, 0 mph for 2 hours, approximately 40 mph for 2 hours, and then approximately 20 mph for the last 2 hours. Note that the step graph assumes instantaneous change of speed, which is not technically possible. 1-113. a: x = 2 b: x = 4 1-114. mB = 39.8° , 244 ≈ 15.62 1-115. 56 inches Speed (mph) Time (hours) 1-116. The independent variable is the volume of water; the dependent variable is the height C of the liquid. The graph is 3 line segments A starting at the origin. C is the steepest, and B is the least steep. Volume of Water Added 1-117. Diagrams vary; graph and table below, y = 3x. 1-118. a: 26 1 b: 25 1 x y 1 3 Height of Liquid 2 6 3 9 B 10 © 2013 CPM Educational Program. All rights reserved. Core Connections Algebra 2
Lesson 2.1.1 2-4. a: See graph at right. b: Yes, for every possible amount of water usage, there is only one possible cost. c: Domain: 0 to 1,000 cubic feet; range: discrete values including: $12.70, $16.60, $20.50, $24.40, $29.60, $34.80, $40, $45.20, $50.40, $55.60, $60.80 Cost ($) Water Used (ft 3 ) 2-5. Smallest: a: 2; b: 0; c: –3; d: none. Largest: a: none. b: none. c: none. d: 0. e: At the vertex. 2-6. The negative coefficient causes parabolas to open downward, without changing the vertex. See graph at right. 2-7. a: Parabola with vertex (3, 0), see graph at right. b: Shifted to the right three units. 2-8. a: 4, 1, 0.25; t(n) = 256(0.25) n – 1 b: They get smaller, but are never negative. c: See graph at right. They get very close to zero. d: The domain is n integers greater than or equal to zero. The domain of the function is all real numbers. y x t(n) 2-9. a: y = − 2 3 x − 4 b: y = 2 n c: x = 2 d: y = 2 3 x − 8 3 2-10. n = 24; 650 = 5 26 Selected Answers © 2013 CPM Educational Program. All rights reserved. 11
Page 1 and 2: Selected Answers for Core Connectio
Page 3 and 4: Lesson 1.1.2 (Day 2) 1-19. y = 30 -
Page 5 and 6: Lesson 1.1.4 1-46. (2, 1) 1-47. a:
Page 7 and 8: Lesson 1.2.2 (Day 1) 1-84. (1, 3) a
Page 9: Lesson 1.2.3 1-104. m = - 4 3 , (4,
Page 13 and 14: Lesson 2.1.3 2-35. a: y = 0 or 6 b:
Page 15 and 16: Lesson 2.1.5 2-69. Answers will var
Page 17 and 18: Lesson 2.2.1 (Day 3) 2-95. a: y = 1
Page 19 and 20: Lesson 2.2.2 (Day 2) 2-114. a: (10,
Page 21 and 22: Lesson 2.2.4 2-139. y = (x + 3.5) 2
Page 23 and 24: Lesson 3.1.2 3-23. a: not equivalen
Page 25 and 26: Lesson 3.2.1 3-63. odd numbers; 46
Page 27 and 28: Lesson 3.2.5 3-113. a: 2 3x+1 b: x-
Page 29 and 30: Lesson 4.1.2 4-22. Graph y = (x −
Page 31 and 32: Lesson 4.2.1 4-65. a: boundary poin
Page 33 and 34: Lesson 4.2.4 4-99. a: y = 1 2 (x +
Page 35 and 36: Lesson 5.1.3 5-48. 121 b: 17 5-49.
Page 37 and 38: Lesson 5.2.2 5-73. x = 2 y , no, ye
Page 39 and 40: Lesson 5.2.5 5-112. f (g(x)) = g( f
Page 41 and 42: Lesson 6.1.2 6-21. a: (0, 10, 0), (
Page 43 and 44: Lesson 6.1.5 6-71. x = -1, y = 3, z
Page 45 and 46: Lesson 6.2.2 6-113. a: 5.717 b: 11.
Page 47 and 48: Lesson 6.2.4 6-138. a: Decreasing b
Page 49 and 50: Lesson 7.1.2 (Day 1) 7-15. a: 30 -
Page 51 and 52: Lesson 7.1.3 7-36. See graph at rig
Page 53 and 54: Lesson 7.1.4 (Day 2) 7-62. 58º, 12
Page 55 and 56: Lesson 7.1.6 7-90. a: -0.76 b: - 3
Page 57 and 58: Lesson 7.2.1 7-116. a: See graph at
Page 59 and 60: Lesson 7.2.3 7-144. a: Amplitude 3,
Page 61 and 62:
Lesson 8.1.1 (Day 1) 8-8. See graph
Page 63 and 64:
Lesson 8.1.2 8-36. At (−3 ± 5, 0
Page 65 and 66:
Lesson 8.2.1 8-70. a: -18 - 5i b: 1
Page 67 and 68:
Lesson 8.2.3 8-104. a: three real l
Page 69 and 70:
Lesson 8.3.2 (Day 1) 8-138. a: It s
Page 71 and 72:
Lesson 8.3.2 (Day 3) 8-156. a: −
Page 73 and 74:
Lesson 9.1.1 9-7. a: Population: U.
Page 75 and 76:
Lesson 9.1.3 9-36. a: This informat
Page 77 and 78:
Lesson 9.2.2 9-62. a: Not likely; t
Page 79 and 80:
Lesson 9.3.2 9-88. a: The typical n
Page 81 and 82:
Lesson 10.1.1 10-7. a: $165 b: t(n)
Page 83 and 84:
Lesson 10.1.3 10-49. a: 16,200 b: 1
Page 85 and 86:
Lesson 10.2.1 (Day 1) 10-87. a: 3+
Page 87 and 88:
Lesson 10.2.2 10-117. 500 miles 10-
Page 89 and 90:
Lesson 10.3.1 (Day 2) 10-155. 42x 3
Page 91 and 92:
Lesson 11.1.1 11-5. a: preface b: b
Page 93 and 94:
Lesson 11.1.3 11-28. Theoretically,
Page 95 and 96:
Lesson 11.2.2 11-52. a: 0.56 and 0.
Page 97 and 98:
11-68. (0, 0) 11-69. a: 5 + i b: -1
Page 99 and 100:
Lesson 11.3.1 11-87. This is a “G
Page 101 and 102:
Lesson 12.1.2 12-29. a: x = π 6 ,
Page 103 and 104:
Lesson 12.1.3 (Day 2) 12-52. The re
Page 105 and 106:
Lesson 12.2.1 12-90. a: 1 b: cos(4w
Page 107 and 108:
Lesson 12.2.2 (Day 2) 12-118. a: (s
show all

Core Connections Algebra 2

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?