Algebra-2

1. The distance it takes to stop a car varies directly as the square of the speed of the car. This means that the distance is directly proportional to the square of the speed.

2. It takes 112 feet for a car traveling at 40 miles per hour to stop.

Let D be the distance required for a certain speed, and S be the speed of the car.

According to the given information, we have:

D = k * S²

We need to find the distance required for a speed of 65 miles per hour, so let's call this distance D2 and speed S2:

D2 = k * ...