document.write( "Question 994973: write the equation of the parabola if its focus is at (0,10), and the equation of its directrix is y=-10 \n" ); document.write( "
Algebra.Com's Answer #613860 by josgarithmetic(39620)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Derive equation of parabola, from Focus and Directrix\r
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\n" ); document.write( "\n" ); document.write( "Same idea, but for vertex NOT at Origin
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