Let x be the distance (in feet) along the road that the car has traveled and h be the distance (in feet) between the car
and the observer.
(a) Before the car passes the observer, we have dh/dt < 0; after it passes, we have dh/dt > 0. So at the instant it passes the observer we have
dh/dt = 0, given that dh/dt varies continuously since the car travels at a constant velocity.
4.3d+7.5=5.8d
-4.3d -4.3d
7.5=1.5d
/1.5 /1.5
5=d
The answer would be 30% , 3% would only be correct if he gave 0.3/10
x travels from -5 to 5
y stays constant at 8
Quotient is given by y/x
Hence our answer is .
Here h can't be 0 as it makes the diction undefined.
Option B
8.5 correct me if i am wrong.
