Extra Pre-Calc MSL Practice- Unit 5-8

An engineer is designing a parabolic archway for a new park, using the function 21 ( 3) 2

8x y= − + − . What will the width of the archway be

at it’s focus?

A ferris wheel’s highest point is 47 ft off the ground. The radius of the wheel is 20 and it completes 3 full revolutions in 60 seconds. If rides get on at the center of the wheel and then travel upwards, what is an equation for the rider’s motion?