document.write( "Question 136921: Determine whether the given equation represent a circle. If the equation represents the circle then find the radius and center of the circle.
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\n" ); document.write( "\"X%5E2%2F4+%2B+y%5E2%2F4=1\" \n" ); document.write( "
Algebra.Com's Answer #100212 by dolly(163)\"\" \"About 
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Hi,\r
\n" ); document.write( "\n" ); document.write( "The given equation is \"X%5E2%2F4+%2B+y%5E2%2F4=1\"\r
\n" ); document.write( "\n" ); document.write( "Now taking the common denominator as 4,
\n" ); document.write( "multiply both sides by the common denominator.
\n" ); document.write( "==> x^2 + y^2 = 4\r
\n" ); document.write( "\n" ); document.write( "This can be compared with the standard equation of the circle which is
\n" ); document.write( "x^2 + y^2 = r^2\r
\n" ); document.write( "\n" ); document.write( "==> the radius = 2
\n" ); document.write( "and the centre is the origin (0,0)\r
\n" ); document.write( "\n" ); document.write( "Thus the centre is (0,0) and the radius is 2 units\r
\n" ); document.write( "\n" ); document.write( "Good luck!!!\r
\n" ); document.write( "\n" ); document.write( "dolly
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