posted by Abbey(Please help) .
Find the vertex, focus, and directrix of the parabola.
x^2 - 2x + 8y + 9 = 0
x^2 - 2x +1 = -8y + 9+ 1
(x-1)^2 = -8(y-1.25)
My teacher said that I have sign errors. I do not know where I went wrong.