document.write( "Question 43802: Give the center of the circle with equation x^2+2x+y^2-10y+22=0. Thank you! \n" ); document.write( "

Algebra.Com's Answer #28781 by jake_6233(74) $\"\"$ $\"About$

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Give the center of the circle with equation x^2+2x+y^2-10y+22=0
\n" ); document.write( "You need to complete the square twice to solve this problem
\n" ); document.write( "Recall (x+b/2)^2 +(y+b/2)^2 then remember to add (b/2)^2 to the right side so\r
\n" ); document.write( "\n" ); document.write( "(x+1)^2 + (y-5)^2 = -22 +1 + 25\r
\n" ); document.write( "\n" ); document.write( "(x+1)^2 +(y-5)^2 = 4 (this is the standard form of a circle)
\n" ); document.write( "(x-h)^2 +(y-c)^2 = r^2\r
\n" ); document.write( "\n" ); document.write( "so the center is (-1,5) with a radius of 2 \n" ); document.write( "

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