document.write( "Question 975212: Find the vertex, focus and directrix of the parabola ( x -5 )^2 = 8 (y+2) \n" ); document.write( "

Algebra.Com's Answer #597043 by josgarithmetic(39620) $\"\"$ $\"About$

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A derivation gives a form $\"%28x-h%29%5E2=4p%28y-k%29\"$ where p is the distance from vertex (h,k) to either focus or directrix. In your example, vertex is (5,-2) and $\"4p=8\"$ will allow you to determine the point as ordered pair of the focus and directrix. \n" ); document.write( "

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