Question 522055
The standard form of the equation of the parabola with it's vertex at (0,0) and focus at (0,-4)
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Standard form of parabola opening downward: (x-h)^2=-4p(y-k), (h,k) being the (x,y) coordinates of the vertex, focus is p units from the vertex on the axis of symmetry.
For given equation:
p=4
x^2=-16y