HURRYYYY!

What is the equation of the quadratic graph with a focus of (8, −8) and a directrix of y = −6? (1 point)


f(x) = − one fourth (x − 7)2 + 1


f(x) = − one fourth (x − 8)2


f(x) = − one fourth (x − 8)2 − 7


f(x) = one fourth (x − 7)2