document.write( "Question 921580: (x+1)squared + (y+6)squared = 16 \n" ); document.write( "
Algebra.Com's Answer #559070 by MathLover1(20850)\"\" \"About 
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recall equation of a circle in standard form:
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\n" ); document.write( "\"%28x-h%29%5E2+%2B+%28y-k%29%5E2+=+r%5E2\"\r
\n" ); document.write( "\n" ); document.write( "where \"r\" is the radius of the circle, and (\"h\",\"k\") are the coordinates of its center\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2B1%29%5E2+%2B+%28y%2B6%29%5E2+=+16\" ..so, here you have a circle with center at (\"-1\",\"-6\" and radius \"r=4\"\r
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