Question

A parabolic radar antenna has the shape given by y^2=8x,(units are feet).For maximum concetration of reflected energy, the antenna element is always placed at the focus of the parabolic antenna reflector.Suppose the antena is placed on a tower such that the center of reflector is 25ft above the ground . When an aircraft is tracked,the antena is pointed skyward at angle of 45.How high abowe the ground will the antenna element be when antena is in that position,and what equation describes the shape of the antenna? Possible answers;