Question

What is the equation of the parabola, in vertex form, with vertex at (2,-4) and directrix y=-6?

answer choices:
(y+4)^2=-4(x+2)
(x-2)^2=-1/4(y+5)
(x-2)^2=4(y+5)
(y+2)^2=1/4(y+4)

Answer 1

@astrophysics

Answer 2

i know i have to convert to standard form
y=x^2 -12

Answer 3

i think its the second choice but im not sure?

Answer 4

@roscoe_513