Ryan shoots an arrow upwards while he stands on top of a tree house. The graph shown below traces the path of the arro is in the air, where y is the height of the arrow above the ground, and x is the horizontal distance from the tree house. Fou
the arrow's path through the air are marked in the graph below.
c
D
At which stage of the arrow's path does the height above the ground change at the slowest rate?
stage B
OD
stage D
stage A
stage C

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below: