Find the standard form of the equation of the parabola with the given characteristic(s) and vertex at the origin. Directrix: y=2

Question

Find the standard form of the equation of the parabola with the given characteristic(s) and vertex at the origin.

Directrix: y=2

Answer 1

Vertex is (0, 0). Equation of parabola x² = 4py;

Focus is (0, - 2), so p = - 2

Equation of parabola: x² = - 8y