Suppose h(t) = -4t2 + 11t + 3 is the height of a diver above the water (in meters), t seconds after the diver leaves the springboard. a. How high above the water is the springboard? Show your work.

b. When does the diver hit the water? Show your work.

c. At what time on the diver's descent toward the water is the diver again at the same height as the springboard? Show your work.

d. When does the diver reach the peak of the dive? Show your work.