Write an equation of a parabola with a vertex at the origin and a directrix at y = 5.

(1 point)
Responses

x = 5y2
x = 5 y 2

x = –Fraction is 1 over 20y2
x = – Image with alt text: Fraction is 1 over 20 y 2

y = –Fraction is 1 over 20x2
y = – Image with alt text: Fraction is 1 over 20 x 2

y = –20x2