A parabola with a vertex at open paren 0 comma 0 close paren has a directrix that crosses the negative part of the y -axis. Which could be the equation of the parabola?

Question

Revolt · Accepted Answer

x squared is equal to 4 y

Conic Sections — Test

A parabola with a vertex at open paren 0 comma 0 close paren has a directrix that crosses the negative part of the y -axis. Which could be the equation of the parabola?

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