A train travels at a speed of $75$ miles per hour. Write the distance d traveled by the train as function of time t in hours, and use it to find d (in miles)when the value of $t = 4$ hours.
A) $d ( 4 ) = 1200$ miles
B) $d ( 4 ) = 75$ miles
C) $d ( 4 ) = 150$ miles
D) $d ( 4 ) = 16$ miles
E) $d ( 4 ) = 300$ miles

Question

Quizplus · Accepted Answer

The distance $d$ traveled by the train is given by the function $d = 75t$. When $t = 4$ hours, $d = 75 \times 4 = 300$ miles.

A Train Travels at a Speed Of 757575 Miles Per Hour t=4t = 4t=4

A Train Travels at a Speed Of $75$ Miles Per Hour $t = 4$