Afootball is kicked at 40 yards away from goal post that is 10 feet high. its path is modeled by y=-0.03^2+1.6x where x is the horizontal distance in yards traveled by the football and y is the corresponding height above the ground in feet. does the football go over the goal post ? how far above or below the goal post is the football?

Since we have the equation that models the movement of the ball, we simply need to replace the corresponding values in the equation.
Althought there seems to be an X missing, so it should be
y=-0.03*x^2+1.6x 
like this, the graph should be as the picture shows.
We can immediately see in the picture that the football does go over the goal post, let's see how much, by replacing the values:

since the pole is 10 ft high, the ball is 6 above the post