ALGEBRA 1 Fall Semester Final Review
ANSWER KEY
1. C
2. Multiply both sides by the -4;
3. Negative slope
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
x = -32
Positive slope
Zero slope
D
D
Opposites or inverse
12
C
B
x-intercept is 12; (12,0)
C
D
C; this type of question not on final
x=-4
A
B
x=16
x=2
𝑦 = 𝑥;
-14m+5n
m=1
m=-1
A
19
B
2
28. 𝑦 = 3 𝑥 − 3
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
x=-4
D
x=4; this type of question not on final
C
x=-10
C
B
x=6
3𝑦 − 8
B ; flip inequality symbol when you divide or multiply by a negative number when solving
D
D
Undefined
B
11
Undefined
44. y-intercept is 7; (0,7)
45. C
2
46. 𝑦 = 3 𝑥 − 2
47. A
48. zero
49. 𝑥 < −2.3
50. C
51. 11𝑥 + 12
52. D
53. C; this type of question not on final
54. 𝑥 = −7
55. IV quadrant
56. D
57. D
58. B
59. 𝑥 ≤ −7 ; flip inequality symbol when you divide or multiply by a negative number when solving or when
switching sides between variable and answer
60. III, II, I, IV
61. D ; flip inequality symbol when you divide or multiply by a negative number when solving
62. −10 ≤ 𝑥 < 8; this type of question not on final
63. B
64. D
65. B
4
3
66. 𝑦 − 7 = (𝑥 − 3); this type of question not on final
67.
68.
69.
70.
71.
72.
73.
74.
x=4
C; this type of question not on final
B
B
6𝑦 − 2
B
SKIP THIS QUESTION
D
1
75. 𝑦 = 3 𝑥 + 2
76.
77.
78.
79.
80.
81.
82.
83.
84.
B
𝑦 = −𝑥 + 7; this type of question not on final
n=-132
n=89
C
C
A
B; this type of question not on final
x=5
1
85. 𝑚 = 2
86.
87.
88.
89.
90.
𝑦 = 3𝑥 − 3
83
D
𝑓(𝑥) = 30𝑥 + 250
C
91.
92. D
93. 18; this type of question not on final
94. x=4
95. no; because the x values cannot repeat
96. the salary is the dependent value
97. A
98. A
99. Yes; there are no points on the graph where the x value is the same
100.
Y=1
101.
C; use slope formula to calculate slope and the point (0,-5) is the y-intercept
2
102.
𝑦 = −3𝑥 + 2
103.
104.
105.
106.
107.
D
A
D; this type of question not on final
Domain: {-1, 0, 1}
C
108.
𝑦 − 2 = − 4 (𝑥 + 4); this type of question not on final
109.
110.
D
x=-1
111.
𝑦 = −3𝑥 + 2
112.
113.
A; independent variable is always graphed on the x-axis
D
114.
𝑡 = 𝑝−2
115.
116.
A; x values cannot repeat for different outputs
D
117.
𝑦 = − 2 𝑥 ; any line that has the same slope is parallel regardless of the y-intercept
118.
119.
120.
121.
C
𝑦 = 4𝑥 + 2; this type of question not on final
D
𝑦 = −14𝑥 − 4
3
1
3
2
1
122.
123.
124.
C
𝑆 = 400 + 100𝑐; where S is the weekly earnings and c is the number of cars sold
A
125.
𝑦 = −2𝑥 − 2
126.
127.
128.
129.
130.
131.
132.
C
C
B; this type of question not on final
R: {-13, 2, 14}
D
D
B; this type of question not on final
133.
𝑦 = 𝑥 ; any equation with this slope regardless of the y-intercept
134.
135.
136.
137.
138.
C
D ; flip inequality symbol when you divide or multiply by a negative number when solving
C ; flip inequality symbol when you divide or multiply by a negative number when solving
C
D
1
3
8