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Mathematics 8 Online
OpenStudy (anonymous):

Use the distance formula to find the equation of a parabola with a focus at (0, -10) and a directrix as y = 10.

OpenStudy (anonymous):

Find the equation relating to all points.(x,y) that are equidistant from (0,-10)and (x,10) use distance formula.|dw:1371536016642:dw| and simplified it you will get answer

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