document.write( "Question 1157993: The graph of x2 −6x+9+y2 +2y+1 = 25 is a circle. Where is the center of the circle? What is the radius of the circle? \n" ); document.write( "
Algebra.Com's Answer #780905 by math_helper(2461)\"\" \"About 
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\n" ); document.write( "\"+%28x%5E2-6x%2B9%29+%2B+%28y%5E2%2B2y%2B1%29+=+25+\"
\n" ); document.write( "\"+%28x-3%29%5E2+%2B+%28y%2B1%29%5E2+=+5%5E2+\"\r
\n" ); document.write( "\n" ); document.write( "Compare this to the standard form of the equation of a circle:
\n" ); document.write( "\"+%28x-x%5B0%5D%29%5E2+%2B+%28y-y%5B0%5D%29%5E2+=+r%5E2+\"
\n" ); document.write( "where the center is at (\"x%5B0%5D\",\"y%5B0%5D\") :\r
\n" ); document.write( "\n" ); document.write( "Center at (3,-1), r=5\r
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