document.write( "Question 1010588: Write an equation given vertex (2, -3) focus (0, -3) \n" ); document.write( "
Algebra.Com's Answer #626055 by josgarithmetic(39620)\"\" \"About 
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Knowing the focus and vertex, you can determine the directrix, and the same lessons as given previously can still be used:\r
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\n" ); document.write( "\n" ); document.write( "Deriving equation for parabola - vertex at Origin\r
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\n" ); document.write( "\n" ); document.write( "Same thing but vertex not at Origin
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