Find an equation of a parabola with a vertex at the origin and directrix y = –3.5

(1 point)
Responses

y = –start fraction 1 over 14 end fractionx2
y = – Image with alt text: start fraction 1 over 14 end fraction x 2

y = start fraction 1 over 14 end fractionx2
y = Image with alt text: start fraction 1 over 14 end fraction x 2

x = start fraction 1 over 14 end fractiony2
x = Image with alt text: start fraction 1 over 14 end fraction y 2

x = –start fraction 1 over 14 end fractiony2
x = – Image with alt text: start fraction 1 over 14 end fraction y 2

1 answer

y = start fraction 1 over 14 end fractionx2

This equation represents a parabola with a vertex at the origin and a directrix at y = -3.5.