2. WINTER CARNIVAL After sunset at a winter carnival, two snow machines are decorated with lights and are traveling in different directions along paths that can be modeled by the equations r = 4 sin 0 and r = 4 cos 0. a. Describe the polar graphs of both equations. b. Write an equation in rectangular form for each of the equations. Chapter 9 11. FERRIS WHEEL The lowest point of a Ferris wheel is at the position (0, 0) and the highest point of the Ferris wheel is at (0, 40). (0, 40) (0, 0) a. Write an equation in rectangular form of the graph of the Ferris wheel. b. Identify the graph of your equation from part a. c. Write your equation from part a in polar form