Graph h = f(t) where h is height above groumd (in meters) at time t in minutes. First compute the suitable interval for t greater than or equal 0.
Ferris wheel is 50 meters in diameter and boarded from the platform which is 5 meters above ground. Six o'clock position on Ferris wheel is level with loading platform. Wheel completes one full revolution every eight minutes. You create two complete revolutions on wheel, starting at t=0.