A mirror has a parabolic surface defined by the equation y =startfraction 1 over 24 endfraction x2 with the vertex (0, 0) at the center of the mirror. when the width of the mirror is 8 inches, what is the depth, y, of the mirror? startfraction 1 over 36 endfraction in. one-sixth in. two-thirds in. 2 and two-thirds in.
