document.write( "Question 1106620: Find the equation of a circle passing through the point (1,2) and tangent to both coordinates axes. \r
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Algebra.Com's Answer #721623 by math_helper(2461) $\"\"$ $\"About$

You can put this solution on YOUR website!

\n" ); document.write( "The equation of a circle with center at (h,k) and radius r is:\r
\n" ); document.write( "\n" ); document.write( " $\"++%28x-h%29%5E2+%2B+%28y-k%29%5E2+=+r%5E2+\"$ \r
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\n" ); document.write( "\n" ); document.write( "Since the circle is tangent to the coordinate axes, its center is at (r,r):\r
\n" ); document.write( "\n" ); document.write( " $\"+%28x-r%29%5E2+%2B+%28y-r%29%5E2+=+r%5E2+\"$
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\n" ); document.write( "Plugging in (x=1, y=2):
\n" ); document.write( " $\"++%281-r%29%5E2+%2B+%282-r%29%5E2+=+r%5E2+\"$
\n" ); document.write( " ….\r
\n" ); document.write( "\n" ); document.write( "Can you solve it from here? (there are two solutions)\r
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