What is the equation of the quadratic graph with a focus of (2, − 2) and a directrix of y = 0? (1 point) f(x) = − one fourth (x − 2)2 − 1 f(x) = − one fourth (x − 2)2 + 1 f(x) = − one fourth (x − 2)2 f(x) = one fourth (x − 2)2 +