A golfer strikes a golf ball into the air from the ground. The height, h metres, of the ball can be modelled by h = 32t – 4t2, where t is the time in seconds after it leaves the
ground.

i. On a sheet of graph paper, using a scale of 2 cm to represent 1 unit on the t -axis
and 1 cm to represent 5 units on the h -axis, draw the graph of h = 32t – 4t2
ii Use your graph to find he maximum height of the ball above the ground and the time

at which it occurs.