Question

Latoya and Keith dropped a ball from various heights and measured the height of the first bounce. They recorded their data in the chart below.

Height from
which ball
was dropped (d) 50 in 40 in 60 in 60 in
Height
of first
bounce (b) 16 in 13 in 22 in 21 in

Which equation best shows the relationship between the height from which the ball was dropped and the height of the ball's first bounce?
b = 3d
b = d - 39
b = d - 34
b = 1/3 d