(x+1) (x-1)
(x+1) (x-1)=x^2-1

The quadratic function h(t) = -16.1t^2 + 150 models a balls height, in feet, over time, in seconds, after its dropped from a 15 story building. from what height in feet was the ball dropped?

Match each function with its rate of growth or decay

Just tell me how to set up the equation.