The signal light on the ship is the spotlight with parallel reflected light rays. Assume parabolic reflector is 12 inches in diameter and light source is situated at focus, that is 1.5 inches from vertex
a) Determine equation of parabola using axis (right positive) and vertex at origin
b) Find depth of parabolic reflector.
2) Determine all intersection points of graph of hyperbola 4x^2 _ y^2=1
a- y=x
b=3x