document.write( "Question 1028164: In the following exercise, V denotes the vertex of a parabola, F the focus, and D the directrix. Two of these are given Find the third
\n" ); document.write( "1. V(0,0), F(-3,0)
\n" ); document.write( "2.V(0,0), D; x=-2
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Algebra.Com's Answer #643314 by josgarithmetic(39620)\"\" \"About 
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Video - derive equation for parabola given directrix and focus \n" ); document.write( "
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