parabola equation is 4P(x-h)=(y-k)^2 (sideways parabola) or 4P(y-k)=(x-h)^2 (up and down parabola)
it is a vertical parabola since the focus is directly above the vertex P is the distance from the vertex to the focus which is 3 it is positive since the focus is above it 4(3)(y-k)=(x-h)^2 (h,k) is the vertex vertex is 0,0 4(3)(y-0)=(x-0)^2 12y=x^2 y=(x^2)/12
