Select the correct answer

The diagram shows mirror AB with a midpoint C (1, 5). Two rays span out from C. One is labeled y minus x equals 4 and it extends up and to the right through point D. Another is labeled reflected ray and it extends down and to the right through point E.

A ray of light is reflected from a mirror such that the reflected ray is perpendicular to the original ray, as shown in the diagram. The equation of the reflected ray is .The point does not lie on the reflected ray.