Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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Use the Cross Products Property to solve the proportion.
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1.
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a. | a = 21 | c. | a = 8.8 | b. | a = 0.7 | d. | a = 8 |
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2.
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a. | n = 14 | c. | n = 18 | b. | n = 234 | d. | n = 2 |
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3.
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a. | y = 46 | c. | y = 44 | b. | y = 45 | d. | y = 48 |
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4.
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There are 16 fluid ounces of juice in 2 bottles of your favorite juice. How many
fluid ounces are there in 10 bottles?
a. | 96 fluid ounces | c. | 80 fluid ounces | b. | 72 fluid ounces | d. | 160 fluid
ounces |
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Find the slope of the line.
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5.
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a. | 1 | c. | 5 | b. | 10 | d. |  |
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6.
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Short Answer
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1.
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You are looking at two graphs. One shows the amount of money y that Max
makes in x hours. The other graph shows the same thing for Elle. The graph for Elle is
steeper. What does this tell you?
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Graph the data. Then find and interpret the slope of the line through
the points.
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2.
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| Seconds, x | 3 | 5 | 7 | 9 | | Revolutions, y | 87 | 145 | 203 | 261 | | | | | |
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3.
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| Work Days, x | 5 | 10 | 15 | 20 | | Hours Worked, y | 52.5 | 105 | 157.5 | 210 | | | | | |
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Tell whether x and y show direct variation. Explain your
reasoning. If so, find k.
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4.
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5.
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6.
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You rent a scooter for two days while you are on vacation. Tell whether x
and y show direct variation. If so, write an equation of direct variation. | Miles,
x | 50 | 30 | | Cost, y | $30 | $24 | | | |
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