A diver is standing on a diving platform. She jumps up and dives into the water. The function h(t)= -2t ² +4t+16 represents the height of the diver above the water, where height is measured in metres and t is the time in seconds. Use any of the skills learned in Chapter 3 to answer the following questions. Please use the space below to show your work. A grid is provided for your use, although a graph is not required.

a) How high above the water is the diving platform?

b) What is the maximum height reached by the diver?

c) When does the diver reach the maximum height?

d) How long does it take for the diver to reach the water?