the path of a basket ball can be modelled by the equation h=-0.09d^2 + 0.9d +2. How far is the ball from the player when it reaches maximum height

Question

h is the height of the ball in meters and d is the horizontal distance of the player in meters 

Answer 1

Maximum height (4.25) is reached when d=5=-b/(2a), b=0.9. a=-0.09.

Once you have d, you can calculate h from your equation. h=4.25