Determine the quadratic function whose graph is given.
-A projectile is thrown upward so that its distance above the ground after t seconds is h = -10t² + 320t. After how many seconds does it reach its maximum height?

Question

Quizplus · Accepted Answer

The maximum height of a quadratic function in the form of h = at^2 + bt + c is reached at t = -b/(2a). Here, a = -10 and b = 320, so t = -320/(2 * -10) = 16 seconds.

Determine the Quadratic Function Whose Graph Is Given