You throw a ball straight up from a rooftop. x, seconds after y, ball's height, The ball misses the rooftop on its way down the ball is in feet, above the and eventually strikes the ground. A thrown ground mathematical model can be used to describe 1 279 the relationship for the ball's height above 3 241 the ground, y, after x seconds. 4 174 a. Find the quadratic function y = ax + bx + c whose graph passes through the given points. y=