document.write( "Question 55199: Find the center and the radius of the circle whose equation is given: x^2+y^2+6x+8=0
\n" ); document.write( "Center = (_,_) Radius = _
\n" ); document.write( "

Algebra.Com's Answer #37465 by stanbon(75887)\"\" \"About 
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( "
\n" );