Starting from 300 feet away, a car drives toward you. it then passes by you at a speed of 48 feet per second. the distance dd (in feet) of the car from you after tt seconds is given by the equation d=|300−48t|d=|300−48t|. at what times is the car 60 feet from you?

we know that

The distance d (in feet) of the car from you after t seconds is given by the equation

Find the times t for

substitute the value of d in the equation

Solve for t

There are two solutions

First Solution

Second Solution

therefore

the answer is

At the time and at the time

x= 149. 24+7=31. 180-31=149

your welcome