Question

The function shown represents the height h (in feet) of a firework in t seconds after it is launched. The firework explodes at its highest point. h = 16t squared + 128t. When does the firework explode? At what height does the firework explode?

Answer 1

The equation:
h = 16t^2 + 128t
continues to grow as t increases, therefore the "highest" point will be the longer the firework flies.