Distance of a Dropped Ball from the Ground
The graph shows the distance from the ground, y, of a ball that is dropped from a 20-
meter height at different times, x, after the ball is dropped. Which statement about the
graph is true?

The height of the dropped ball decreases at an increasing
rate.
The height of the dropped ball decreases at a decreasing
rate.
The time the ball is in the air decreases at an increasing
rate.
The time the ball is in the air decreases at a decreasing
rate.