A.4.2 Practice Problems

The height of water in a bathtub, w, is a function of time, t. Let P represent this function. Height is measured in inches and time in minutes.                 Match each description with a statement in function notation. After 20 minutes, the bathtub is empty.

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The bathtub starts out with no water.

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After 10 minutes, the height of the water is 4 inches.

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The height of the water is 10 inches after 4 minutes.

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