Could you help me with my calc work?

A car is traveling at night along a highway shaped like a parabola with its vertex at the origin (see the figure). The car starts at a point 50 m west and 50 m north of the origin and travels in an easterly direction. There is a statue located 50 m east and 25 m north of the origin. At what point on the highway will the car's headlights illuminate the statue? (Round your coordinates to one decimal place.) X (x, y) =For what values of a and b is the line 5x + y = b tangent to the parabola y = ax when x = 4? b