Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Determine which relation is a function.
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2.
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Determine which relation is a function.
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Use the graph or table to write a linear function that relates y to
x.
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3.
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a. | y =  x | c. | y =  x | b. | y =  x | d. | y =  x |
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4.
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a. | y =  x + 6 | c. | y =  x
– 6 | b. | y =  x + 6 | d. | y =  x –
6 |
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5.
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Describe the relationship between the two quantities.  a. | The airplane speed stays the same. | b. | The speed of the airplane increases quickly,
then stays at a constant speed. | c. | The airplane speed increases over time at an
decreasing rate. | d. | The airplane speed is constant at first and then increases steadily as time
passes. |
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6.
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Describe the relationship between the two quantities.  a. | The cost of stamps increases instantly as the amount of stamps purchased increases.
| b. | The cost of stamps decreases over time at an increasing rate. | c. | The cost of stamps
increases at a constant rate. | d. | The cost of stamps is constant at first and
then increases steadily as time passes. |
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Short Answer
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Graph the function.
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1.
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2.
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3.
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4.
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The table shows the water pressure p (in pounds per square inch) on a
scuba diver at a depth of d feet. | Depth, d | 33 | 66 | 99 | 132 | | Pressure, p | 29.4 | 44.1 | 58.8 | 73.5 | | | | | |
a. Graph the data.
b. Write a linear function that relates the water pressure to the depth of a scuba
diver.
c. What is the water pressure at a depth of 58 feet? Round your answer to the
nearest tenth.
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Does the input-output table represent a linear function? Explain
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5.
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| Input, x | 1 | 2 | 3 | 4 | | Output, y | 2 | 6 | 10 | 14 | | | | | |
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6.
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| Input, x | 3 | 7 | 11 | 15 | | Output, y | 9 | 11 | 13 | 11 | | | | | |
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7.
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Sketch a graph that represents the situation.
You are jogging slowly as you
warm up. Then you begin jogging more quickly.
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