document.write( "Question 1199121: Determine the formula of the parabola with vertex F(1,3) and directrix x=3 \n" ); document.write( "

Algebra.Com's Answer #832827 by josgarithmetic(39617) $\"\"$ $\"About$

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Most any intermediate algebra book would show how this derivation works. Few minutes of study and you can do this yourself. DISTANCE FORMULA! Definition of Parabola! \r
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\n" ); document.write( "\n" ); document.write( "Equation for the set of points equally distant from (1,3) and (3,y)\r
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