Question

The distance a car travels at a rate of 65 mph is a function of the time, t, the car travels. Express this function and evaluate it for f(3.5).

Answer 1

Distance = rate * time

Replace D with f. Instead of writing D(t), write f(t).

f(t) = 65t

Let t = 3.5

f(3.5) = 65(3.5)

f(3.5) = 227.5

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