Find the equation of the parabola with it's focus at (-4,7) and directrix y=1

Question

Is y+4=-1/12(x-4)^2 Right or is it
y-7=1/24(x=a)^2
y-4=1/12(x+4)^2
y-3=1/24(x+4)^2

Answer 1

The vertex is between the directrix nd the focus, at y = 4. It is also at
x = 4, which means the equation must contain an x-4 term. That leaves you with
y-4 = 12(x+4)^2