A stunt motorcyclist makes a jump from one ramp 20 feet off the ground to another ramp 20 feet off the ground. The jump
between the ramps can be modeled by y = -640*+ ** +20 where x is the
horizontal distance in feet) and y is the height above the ground (in feet).
2011
a. What is the motorcycle's height r when it lands on the ramp?
b. What is the distance d between the ramps?
c. What is the horizontal distance h the motorcycle has traveled when it
reaches its maximum height?
d. What is the motorcycle's maximum height k above the ground?