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1. |
An 18-foot ladder is placed 6 feet from the wall. Approximately how high does the ladder reach? |
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A. |
12 ft |
B. |
17.8 ft |
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C. |
19 ft |
D. |
17.0 ft |
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Hint |
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2. |
Name the additive inverse of  |
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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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3. |
Write an inequality for the following problem. One fourth of a number increased by 17 is at least 63. |
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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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4. |
State an absolute value inequality for ''all numbers less than or equal to 8, and greater than or equal to -8.'' |
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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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5. |
The temperature f(x) of water in a lake in degrees Fahrenheit is estimated by the function shown below, where x is the depth in feet of the water. What would be the temperature of water 30 feet below the surface? |
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A. |
71.25°F |
B. |
63°F |
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C. |
33°F |
D. |
111°F |
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Hint |
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6. |
When Kristin works 8 hours, she earns $60. When she works 20 hours, she earns $150. Write a linear equation that describes her earnings. Assume that the changes increase linearly. |
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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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7. |
A best-fit line is drawn on a scatter plot showing the average daily temperature and the number of people at a public swimming pool. The slope of the line would probably be ________ |
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A. |
positive. |
B. |
negative. |
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C. |
undefined. |
D. |
zero. |
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Hint |
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8. |
Write the expression 4 · 4 · 4 · 4 · 4 using exponents. |
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A. |
54 |
B. |
44 |
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C. |
45 |
D. |
55 |
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Hint |
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9. |
Solve x = 34. |
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A. |
x = 12 |
B. |
x = 27 |
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C. |
x = 64 |
D. |
x = 81 |
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Hint |
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10. |
The formula for the perimeter of a rectangle is  , where  is the length of the rectangle and w is the width. If a rectangle is 17 ft long and 8 ft wide, what is its perimeter? |
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A. |
68 ft |
B. |
25 ft |
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C. |
50 ft |
D. |
42 ft |
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Hint |
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11. |
Simplify the expression 8 (a + 2b) – 7b + 6 (3a – b). |
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A. |
26a – 6b |
B. |
26a + 3b |
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C. |
4a – 6b |
D. |
152a – 88b |
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Hint |
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12. |
Evaluate | 5 (a – 2b) + 3 | if a = -3 and b = 7. |
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A. |
85 |
B. |
82 |
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C. |
88 |
D. |
-85 |
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Hint |
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13. |
Solve the equation | 4k + 6 | = 5k + 3. |
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A. |
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B. |
3 |
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C. |
-1 |
D. |
{-1, 3} |
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Hint |
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14. |
Solve x + 7 < 5 or x + 6 > 9. |
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A. |
{x | -2 > x > 3} |
B. |
{x | x > -2 or x < 3} |
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C. |
{x | -2 < x < 3} |
D. |
{x | x < -2 or x > 3} |
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Hint |
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15. |
Solve the inequality | f | > 4. |
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A. |
{f | f < -4 or f > 4} |
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B. |
{f | -4 < f < 4} |
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C. |
{f | -4 > f > 4} |
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D. |
{f | f > -4 or f < 4} |
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Hint |
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16. |
Solve the inequality –13 < -5x – 3 < 17. |
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A. |
{x | -4 < x < 2} |
B. |
{x | -2 < x < 4} |
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C. |
{x | 4 > x > -2} |
D. |
{x | 2 < x < -4} |
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Hint |
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17. |
Find the domain of the relation shown in the graph. |
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A. |
{-2, -1, 1, 2, 3, 5} |
B. |
{0, 1, 2, 3} |
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C. |
{-3, -2, -1, 0, 1, 2, 3, 5} |
D. |
{-3, -2, -1, 0, 1, 3} |
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Hint |
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18. |
Write an equation in slope-intercept form for the line that has a slope of 2 and passes through (-4, -6). |
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A. |
y = 2x - 2 |
B. |
y = 2x - 8 |
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C. |
y = 2x + 8 |
D. |
y = 2x + 2 |
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Hint |
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19. |
For which scatter plot will a good line of fit have a negative y-intercept? |
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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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20. |
What is the slope of a constant function? |
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A. |
c, where f (x) = c |
B. |
0 |
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C. |
1 |
D. |
-1 |
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Hint |
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