Write an equation for the sinusoid.

A) Has a low point at (2,-3) and the next high point is (10,5)

B) A 40-foot diameter Ferris wheel makes one revolution every 50 seconds. The lowest a kinder goes is 4 feet above the ground. If your start a timer you find it makes 6 seconds to get to the highest point.

a) How high were you when the timer started?
b) What is the first time you are 20ft up?

Thank you very much! I really appreciate it!!!