A ball is thrown from the top of a 50-ft building

Question

with an upward velocity of 24 ft/s. When will it
reach its maximum height? How far above the
ground will it be? Use the equation
h(t)= -16t^2 + 24t + 50

Answer 1

as with any parabola "at^2+bt+c" the vertex is at
(-b/2a, c - b^2/4a)