document.write( "Question 334908: Find the equation of the parabola with vertex at (−2, 2) and directrix at y = 4 \n" ); document.write( "
Algebra.Com's Answer #240184 by nyc_function(2741)\"\" \"About 
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Since the directrix is horizontal, then the general term of parabola is \r
\n" ); document.write( "\n" ); document.write( "(x-α)^2 = 4p(y-β) vertex (α,β) = (-2,2)\r
\n" ); document.write( "\n" ); document.write( "(x+2)^2 = 4p(y-2)\r
\n" ); document.write( "\n" ); document.write( "p is the distance from vertex to directrix = 2\r
\n" ); document.write( "\n" ); document.write( "The equation of parabola : (x+2)^2 = 8(y-2)
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