contestada

Which equation models a parabola with a vertex
located at (4,6) and a directrix at y = 8?
A. (x – 6)2 = -4)
B. (7-6)2 = (x – 4)
C. (y – 4)2 = -8(x – 6)
D. (x – 4)2 = -8(y - 6)