A football is kicked into the air with an upward velocity of 64 ft/s. It's height in feet after seconds is predicted by a quadratic function h(t) = - 16t^2 + 64t + 4 . At what point in time with the ball be at its maximum height and how high will the ball be in the air ?

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

if your equation is in the form ax2 + bx + c, you can find the maximum by using the equation:

max = c - (b2 / 4a).

the first step is to determine whether your equation gives a maximum or minimum.

-x2 + 4x - 2.     thats an example hope it