Ryan throws a ball into the air from a height of 5 feet above the ground. The equation for the height of the ball in feet, y, after it has traveled a horizontal distance of x feet is given by this equation.

h (t) = - 16t² + 5

Step-by-step explanation:

This is assuming there is no initial velocity. - 16t² is the gravitational expression for all falling objects. 5 represents the ball's initial height, (it's height when t = 0)