The equation of the parabola whose focus is at (0, 5) and directrix at y = -5 is: ~ y = (1/20)x² ~ y = -(1/20)x² ~ x = (1/20)y²

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for a parabola at vertex (0,0) we see that we have to go up and down therfor it opens up or down since focus is above directix, it opens up x^2=4Py p is distance from directix to vertex since it opens up, P is positive from -5 to 0 is 5 units x^2=4(5)y x^2=20y solve for y divide both sides by 20 y=(1/20)x^2 first one

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