The center of a Ferris wheel is 30 feet above the ground. The radius of the wheel is 25 feet. The wheel completes a full revolution every 20 seconds.

The height of the red chair changes over time.[br][list=1][*]Make a graph that shows the relationship between height and time.[br][*]Write an equation that shows this relationship.[br][/list]Suppose you change some of the features of the Ferris wheel. How do these changes impact the graph? How do they impact the equation?[br][list][*]The height of the center of the wheel[br][*]The radius of the wheel[br][*]The time required for the wheel to complete one revolution[br][/list]