Pls . brainliest/5 stars to correct answer

Where p is the distance the focus is above the vertex, the equation of a parabola with vertex (h, k) can be written as

... y = 1/(4p)·(x -h)² +k

The vertex is halfway between the focus and directrix. The focus of your parabola is on the y-axis at y=6, and the directrix of your parabola is at y=-6, so the vertex of your parabola is on the y-axis at y=0. That is, the vertex is

... (h, k) = (0, 0).

The distance p from the focus at y=6 to the vertex at y=0 is 6 units, so

... p = 6.

Filling these values into the equation gives

... y = 1/(4·6)·(x -0)² +0

... y = (1/24)x²

-4

step-by-step explanation:

the answer is c)8

step-by-step explanaction: