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What is the directix of the parabola with equation 5x^2= -40y?

equation Mathematics parabola
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What is the directix of the parabola with equation 5x^2= -40y?

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5x^2= -40y x^2 = -8y , standard form from which we know the vertex is (0,0), the focus is (0,-2), and the directix is parallel to the x-axis going through the point (0,2) see the source below for a good tutorial.

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