Question

Provide the vertex form equation of the parabola with a vertex (-6,-9) and directrix x=-47/8

Answer 1

You mean x = a(y - k)^2 + h?

Answer 2

well looking at this you can tell that the parabola opens to the left

Answer 3

so the way i like to do this is to start by writing out the standard form then converting it to vertex form

Answer 4

so because it opens to the left the equation would be