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1. |
Which graph matches the following statement? The outside temperature rises steadily to 85° at 3 p.m., then drops steadily to 65° at 8 p.m.. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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2. |
Find the difference |-25| - (-32). |
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A. |
7 |
B. |
-7 |
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C. |
-57 |
D. |
57 |
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Hint |
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3. |
Solve 23 - x = 142. |
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A. |
x = -119 |
B. |
x = 165 |
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C. |
x = 119 |
D. |
x = -165 |
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Hint |
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4. |
Solve -198 = -11x. |
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A. |
x = 187 |
B. |
x = 18 |
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C. |
x = -187 |
D. |
x = -18 |
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Hint |
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5. |
A scale drawing of a room has a scale of 1.75 inches = 1.5 feet. How long is a couch that is 7 inches in the scale drawing? |
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A. |
7 ft |
B. |
5 ft |
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C. |
6 ft |
D. |
8 ft |
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Hint |
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6. |
If y varies inversely as x and y = 15 when x = 3, find y when x = 9. |
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A. |
5 |
B. |
45 |
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C. |
15 |
D. |
3 |
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Hint |
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7. |
Solve  |
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A. |
{x | x < 23.68} |
B. |
{x | x > 23.68} |
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C. |
{x | x < 2.31} |
D. |
{x | x > 0.43} |
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Hint |
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8. |
Find  . |
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A. |
 |
B. |
 |
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C. |
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D. |
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Hint |
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9. |
Solve  . |
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A. |
-2 |
B. |
1 or 4 |
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C. |
0 |
D. |
4 |
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Hint |
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10. |
Rico took a survey to find out the number of family members in each of his classmates' households. The results of the survey are shown in the graph. How many total people responded to the survey? |
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A. |
100 |
B. |
85 |
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C. |
95 |
D. |
90 |
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Hint |
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11. |
Solve 2x + 8y = 48 for y. |
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A. |
y = -2x + 48 |
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B. |
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C. |
y = -2x + 6 |
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D. |
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Hint |
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12. |
A triangle has vertices M(-3, 6), N(-3, 3), and O(0, 3). Find the coordinates of the dilated triangle M´N´O´ if the scale factor is  . |
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A. |
M´(1, -2), N´(1, -1), O´(0, -1) |
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B. |
M´(-1, 2), N´(-1, 1), O´(0, 1) |
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C. |
M´(-1, 6), N´(-1, 3), O´(0, 3) |
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D. |
M´(-9, 18), N´(-9, 9), O´(0, 9) |
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Hint |
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13. |
Write the slope-intercept form of an equation for a line perpendicular to the graph of y = -3x + 5 and passes through the x-intercept of that line. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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14. |
Solve –4(10 – n) – 6n > 8(n + 3) – 7n + 2. |
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A. |
n > -6 |
B. |
n > -22 |
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C. |
n < -6 |
D. |
n < -22 |
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Hint |
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15. |
Which of the following is the inequality for the given graph? |
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A. |
3x + y > 2 |
B. |
3x – y > 2 |
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C. |
3x – y < 2 |
D. |
3x + y < 2 |
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Hint |
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16. |
From the set {(-2, -5), (0, 10), (5, 8), (8, -3)}, which ordered pairs are a part of the solution set for 5x + 5y > 45? |
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A. |
{(-2, -5), (5, 8)} |
B. |
{(-2, -5), (8, -3)} |
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C. |
{(0, 10), (5, 8)} |
D. |
{(0, 10), (8, -3)} |
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Hint |
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17. |
Use elimination to solve the system of equations given by 3x – 2y = 10 and 5x + 2y = 6. |
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A. |
infinitely many solutions |
B. |
(2, -2) |
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C. |
(-2, -8) |
D. |
no solution |
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Hint |
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18. |
Express 2.38 × 106 in standard notation. |
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A. |
238,000 |
B. |
0.000000238 |
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C. |
2,380,000 |
D. |
0.00000238 |
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Hint |
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19. |
What is the factored form of the polynomial 23x2 – 69x? |
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A. |
23x(x2 – 3) |
B. |
23x(x2 + 3) |
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C. |
23x(x + 3) |
D. |
23x(x – 3) |
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Hint |
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20. |
Find  . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
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Hint |
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