Mathematics, 04.05.2020 22:56, nothingworksoutforme

What is the equation for a parabola with a focus of (0,-4) and a directrix of y=4 if the vertex is at the origin?..1)..y=1/16x2..2)..x=1/16y2 ..3)..y=1/32x2..4)..y= -1/16x2.

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What is the equation for a parabola with a focus of (0,-4) and a directrix of y=4 if the vertex is a...