Please Help Me Fast!!!
A football is kicked from the ground and travels at a rate of 10 meters per second. The function y = 10x - 5x^2 represents the ball's height above the ground at x seconds.

a.) Use the given equation to determine how long after the football is kicked will it hit the ground?

b.) Graph the function.
What is the football's highest point?_______
How long did it take to get there?__________