You throw a ball straight up from a rooftop. The ball misses the rooftop on its way down
and eventually strikes the ground. A
mathematical model can be used to describe
the relationship for the ball's height above the
ground, y, after x seconds.
x, seconds after
the ball is
thrown
1
3
4
y, ball's height, in
feet, above the
ground
164
146
89
5
a. Find the quadratic function y = ax2 + bx + c whose graph passes through the given points.
y=0