Question: A stone is dropped off a bridge from a height of 20 m above a river. If t represents the elapsed time (in seconds) after

A stone is dropped off a bridge from a height of 20 m above a river. If t represents the elapsed time (in seconds) after the stone is released, then its distance d (in meters) above the river is approximated by the function f(t) = 20 - 5t².

Determine an appropriate domain of each function. Identify the independent and dependent variables.

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