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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. |
7700 feet |
B. |
157.1 feet |
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C. |
9000 feet |
D. |
8800 feet |
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Hint |
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2. |
Copy and complete the function table to find the function values of {-2, -1, 0, 1, 2} for f(n) = 3n + 2. |
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A. |
f(-2) = -4, f(-1) = -1, f(0) = 0, f(1) = 5, f(2) = 8 |
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B. |
f(-2) = -8, f(-1) = -5, f(0) = 2, f(1) = 5, f(2) = 8 |
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C. |
f(-2) = -4, f(-1) = -1, f(0) = 2, f(1) = 5, f(2) = 7 |
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D. |
f (-2) = -4, f (-1) = -1, f (0) = 2, f (1) = 5, f(2) = 8 |
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Hint |
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3. |
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 = 26 ° |
B. |
F = -37 ° |
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C. |
F = 37° |
D. |
F = 31° |
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Hint |
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4. |
Spencer and his friends are taking a hike. They have already traveled 5 miles. If they continue to hike at a rate of 3 miles per hour, which function relates the distance d traveled to the time t in hours? |
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A. |
d = 5t + 3 |
B. |
d = 3t + 5 |
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C. |
t = 3d + 5 |
D. |
t = 5d + 3 |
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Hint |
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5. |
A taxi costs $5 plus $8 for each mile. Which function relates the cost c of a taxi ride to the distance d traveled? |
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A. |
c = 5d + 8 |
B. |
d = 8c + 5 |
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C. |
c = 8d + 5 |
D. |
d = 5c + 8 |
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Hint |
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