An archer releases an arrow from a shoulder height of 1.39 m. When
the arrow hits the target 18 m away, it hits point A. When the target is
removed, the arrow lands 45 m away. Find the maximum height of the
arrow along its parabolic path.

the distance from the top edge of the target to the ground is 1.5 meters

Question

An archer releases an arrow from a shoulder height of 1.39 m. When 
the arrow hits the target 18 m away, it hits point A. When the target is 
removed, the arrow lands 45 m away. Find the maximum height of the 
arrow along its parabolic path.  

the distance from the top edge of the target to the ground is 1.5 meters

anonymous · Answer

also 

Archers need to use arrows that do not bend easily. Th e table shows how the weight of 
an arrow affects its spine, or the distance the center of the arrow bends when a certain 
constant weight is attached. Graph the data in the table to find a linear and a quadratic 
model for the data. Use the regression feature on your calculator to find each model. 
Which model is a better fit? Explain.
weight (in grams) 140,150,170,175,205
weight (in inches) 1.4,1.25, .93, .78, .43