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1. |
If n is the number of seconds between the lightning and the thunder
and f(n) is the number of feet between you and the lightning, then
f(n) = 1100n. If n is 7, find f(n). |
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A. |
9000 feet |
B. |
8800 feet |
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C. |
7700 feet |
D. |
157.1 feet |
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Hint |
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2. |
The graph of the line y = -4x |
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A. |
passes through the
point (0, 0) |
B. |
passes through the
point (2, 8) |
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C. |
passes through the
point (1, 4) |
D. |
passes through the
point (-4, -4) |
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Hint |
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3. |
Graph the system of equations y = 3x + 2 and y = 2 - x. Then find the solution of the system. |
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A. |
(0, 2) |
B. |
(2, -1) |
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C. |
(-1, 2) |
D. |
(2, 0) |
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Hint |
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4. |
The cost function for a company to produce x items is y = 22.5 + 2x and the revenue function is y = 2.5x. If the profit is the revenue minus the cost, what is the profit at the break-even point? |
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A. |
$63 |
B. |
$0 |
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C. |
$75 |
D. |
$112.50 |
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Hint |
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5. |
Suppose a box of oatmeal has the following table to determine the right amounts of water and oatmeal mix. How many cups of water are needed for 4, 5, and 6 serving of oatmeal? |
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A. |
None of these is correct. |
B. |
 cups, 4 cups, and  cups. |
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C. |
 cups, 3 cups, and cups. |
D. |
3 cups, cups, and 4 cups. |
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Hint |
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6. |
Determine whether a scatter plot of a set of data involving time spent studying and grades on a test would show a positive, negative or no relationship? |
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A. |
No Relationship |
B. |
Not Enough Information Given |
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C. |
Positive |
D. |
Negative |
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Hint |
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7. |
Find the next three terms of  , 1, 4, 13. |
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A. |
40, 120, 364 |
B. |
40, 121, 364 |
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C. |
40, 121, 365 |
D. |
40, 121, 360 |
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Hint |
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8. |
Using F = C + 32, find the temperature in Fahrenheit F if the temperature in Celsius C is C = -3?. |
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A. |
F = -37 ° |
B. |
F = 37° |
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C. |
F = 31° |
D. |
F = 26 ° |
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Hint |
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9. |
Which graph represents y = 2x + 3? |
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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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10. |
Find the slope of the line that passes through P(3, 4) and Q(-4, 6). |
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A. |
-1 |
B. |
- |
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C. |
1 |
D. |
 |
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Hint |
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11. |
Find the slope of the line that passes through R(-3, 4) and S(5, 2). |
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A. |
-4 |
B. |
- |
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C. |
4 |
D. |
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Hint |
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12. |
State the slope and y-intercept of the graph of y = -x + 2. |
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A. |
The slope is 2, and the y-intercept is -. |
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B. |
The slope is , and the y-intercept is -2. |
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C. |
The slope is -2, and the y-intercept is -. |
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D. |
The slope is -, and the y-intercept is 2. |
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Hint |
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13. |
Graph y =  x + 1 using the slope and y-intercept. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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14. |
The scatter plot shows the relationship between study time and test scores. Which equation could be used to describe a best-fit line? |
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A. |
y = 3x + 62.5 |
B. |
y = - x + 62.5 |
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C. |
y =  x + 62.5 |
D. |
y = x + 62.5 |
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Hint |
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15. |
Graph y  2x – 1. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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16. |
Graph y  x – 3. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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