3 points
3. Paul stands on a small hill and kicks a soccer ball to the ground below.
The hill is 5 feet above the ground. The path of the ball is a parabola. When
the ball is a horizontal distance of 14 feet from him, it is 10 feet above the
ground. When the ball is a horizontal distance of 30 feet from him, it is 6
feet above the ground. Write the equation of the quadratic function that
models the path of the ball.