1. Slope-Intercept Form pages 294–296 Exercises 1. –2; 1 2. – ; 2 3. 1; –
ALGEBRA 1 LESSON 6-2
pages 294–296  Exercises
1. –2; 1
2. – ; 2
3. 1; –
4. 5; 8
5. ; 1
6. –4; 0
7. –1; –7
8. –0.7; –9
9. – ; –5
10. y = x + 3
11. y = 3x +
12. y = x + 3
13. y = 1
14. y = –x – 6
15. y = – x + 5
16. y = 0.3x + 4
17. y = 0.4x + 0.6
18. y = –7x +
19. y = – x –
20. y = – x +
21. y = x + 1 2 5 4 3 9
22. y = – x + 1
23. y = x + 2
24. y = 2x – 2
25. y = x +
26. y = – x + 2.8
27. y = x –
28.
y = x + 4 8
6-2

2. Slope-Intercept Form 29. y = x – 1 30. y = –5x + 2 31. y = 2x + 5 32.
ALGEBRA 1 LESSON 6-2
29.
y = x – 1
30.
y = –5x + 2
31.
y = 2x + 5
32.
y = x + 4
33.
y = –x + 2
34.
y = 4x – 3
35.
y = – x
36.
y = x – 3
37.
y = – x + 2 3 2
38.
y = – x + 4
39.
y = –0.5x + 2
40. a.
t = 14c – 4
b. $80 4 5
6-2

3. Slope-Intercept Form 51. y = –2x 52. y = – x – 2 53. y = 5x – 6
ALGEBRA 1 LESSON 6-2
51.
y = –2x
52.
y = – x – 2
53.
y = 5x – 6
41. –3; 2
42. – ; 0
43. 9;
44. 3; –9
45. ; 3
46. 9; –15
47. c; d
48. 2 – a; a
49. –3; –2n
50.
y = 7 – 3x
54.
y = – x –
55.  
y = 6x – 8
56. The slope was used for
the y-int., and the y-int.
was used for the slope. 2 3 1
6-2

4. Slope-Intercept Form 68. A; slope in A = > = 2 = slope in B.
ALGEBRA 1 LESSON 6-2
68. A; slope in A = > =
2 = slope in B.
69. y = 2x – 1
70. y = –4x + 7
71. y = – x + 8
72. y = x + 5
73. y = –x – 3
74. y = 3x – 6
75. a–b.
c. Both;
check students’ work.
57. a.
b. h = – t + 12
c. 90 min
58. a. Slope represents the
weight of a gallon of
fuel.
b lb
59. no
60. yes
61. no
62. III
63. I
64. II 8 4 10
4.5
65. a. d = 7p
b. 84 dog years
66. a. t = 5d + 15 b.
t = 5d + 15
c. Answers may vary.
Sample: no neg.
charges and no neg.
number of days
67. Answers may vary.
Sample: Plot point (0, 5),
then move up 3 and
right 4. Plot (4, 8) and
connect the two points. 1 2 15
6-2

5. Slope-Intercept Form 76. a. ; b. 2; –2 c. same slopes
ALGEBRA 1 LESSON 6-2 1 4 1 4
76. a. ;
b. 2; –2
c. same slopes
77. Check students’ work.
78. –
79. –5
80.
81. a.
x = –2; x = 2
y = 3; y = –3
b. Rectangle;
check students’ work.
c. y = x OR y = – x;
explanations may vary.
82. a. r = –15d + 265 b.
r = –15d + 265
c. 18 days
83. D
84. G
85. A
86. [2]
slope: = = 2
y-intercept: 3
equation: y = 2x + 3
[1] correct graph and
minor error in finding
function
87. –
88. –
89.
90. –1
billion 3 2 3 2
5 – 3
1 – 0 1 2 3 4 9 7 5 6 9 2
6-2