grade 11 math. please show all steps and explanation

2. The Ferris wheel at a carnival rotates counterclockwise and has a diameter of 18 meters and descends to 3 meters above ground level at its lowest point. Assume that a rider enters a car from a platform that is located 40" around the rim before the car reaches its lowest point. [6-Marks] a) Model the rider's height above the ground versus angle using a transformed sine function. b) Model the rider's height above the ground versus angle using a transformed cosine function