3. The height of a soft-ball that is thrown 4 feet from the ground can be approximated by the function y=-7x² + 20x +4, where y is the height of the soft-ball in feet x seconds after it is thrown. Graph this
function. Find the time it takes the soft-ball to reach its maximum height, the soft-ball's maximum height,
and the time it takes the soft-ball to return to the ground.
(Diagram Shown: 5 points)
(Math Shown: 5 points)
(Justification: 5 points)