document.write( "Question 165751: I am hoping you can help. I have to find an equation of the circle with center
\n" ); document.write( "\"matrix%28+1%2C3%2C+%22%28-2%22%2C+%22%2C%22%2C+%223%29%22+%29++\" and radius of \"sqrt%286%29\".
\n" ); document.write( "The formula I am using is \"r%5E2=%28x-h%29%5E2%2B%28y-k%29%5E2\"
\n" ); document.write( "I have \"%28x%2B2%29%5E2%2B%28y-3%29%5E2=36\".
\n" ); document.write( "Is this correct?
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Algebra.Com's Answer #122188 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
I am hoping you can help. I have to find an equation of the circle with center
\n" ); document.write( "\"matrix%28+1%2C3%2C+%22%28-2%22%2C+%22%2C%22%2C+%223%29%22+%29++\" and radius of \"sqrt%286%29\".
\n" ); document.write( "The formula I am using is \"r%5E2=%28x-h%29%5E2%2B%28y-k%29%5E2\"
\n" ); document.write( "I have \"%28x%2B2%29%5E2%2B%28y-3%29%5E2=36\".
\n" ); document.write( "Is this correct?\r
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document.write( "No it isn't. The left side is correct, but the\r\n" );
document.write( "right side is incorrect.  That's because \r\n" );
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document.write( "\"r=sqrt%286%29\", and so \r\n" );
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document.write( "\"r%5E2=%28sqrt%286%29%29%5E2\", or\r\n" );
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document.write( "\"r%5E2=6\", not \"matrix%281%2C1%2Ccross%28r%5E2=36%29%29\" \r\n" );
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document.write( "So the answer should be\r\n" );
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document.write( "\"%28x%2B2%29%5E2%2B%28y-3%29%5E2=6\"\r\n" );
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document.write( "Edwin
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