Question

What is the equation of the quadratic graph with a focus of (−4, seventeen eighths) and a directrix of y = fifteen eighths?

f(x) = −2x2 + 16x − 24

f(x) = −2x2 + 15x − 2

f(x) = 2x2 + 12x − 10

f(x) = 2x2 + 16x + 34