Answer:
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Explanation:
A snorkeler dives for a shell on a reef. After entering the water, the diver decends
ft in one second.
Let t be the time passed after entering the water, in seconds, and h(t) be the position of the snorkeler under the water, in feet.
The initial position of the snorkeler was 0 feet under the water.
An equation that models the divers position with respect to time is

Here the position is negative, because the diver decends (he deepens under the water)