document.write( "Question 974686: The graph of the equation x^2 + y^2 + 8x − 10y − 40 = 0 is which of the following conic sections?\r
\n" ); document.write( "\n" ); document.write( "A. parabola\r
\n" ); document.write( "\n" ); document.write( "B. hyperbola\r
\n" ); document.write( "\n" ); document.write( "C. ellipse\r
\n" ); document.write( "\n" ); document.write( "D. circle
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Algebra.Com's Answer #596532 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
\"x%5E2+%2B+y%5E2+%2B+8x+%26%238722%3B+10y+%26%238722%3B+40+=+0\"
\n" ); document.write( "\"x%5E2%2B8x%2By%5E2-10y=40\"
\n" ); document.write( "\"x%5E2%2B8x%2B16%2By%5E2-10y%2B25=40%2B16%2B25\"
\n" ); document.write( "\"%28x%2B4%29%5E2%2B%28y-5%29%5E2=81\"
\n" ); document.write( "It's a circle centered at (-4,5) with a radius of 9.
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