document.write( "Question 55199: Find the center and the radius of the circle whose equation is given: x^2+y^2+6x+8=0
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document.write( "Center = (_,_) Radius = _ \n" );
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Algebra.Com's Answer #37465 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Find the center and the radius of the circle whose equation is given: x^2+y^2+6x+8=0 \n" ); document.write( "Rewrite as follows: \n" ); document.write( "x^2+6x+?+y^2 = -8+? \n" ); document.write( "Complete the square to get: \n" ); document.write( "x^2+6x+9 + y^2 = -8+9 \n" ); document.write( "Factor to get: \n" ); document.write( "(x+3)^2 + (y-0)^2 = 1 \n" ); document.write( "Center at (-3,0) \n" ); document.write( "Radius = 1 \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |