document.write( "Question 474176: ind the center of a circle with the equation x2 + y2 + 2x + 4y – 9 = 0. \n" ); document.write( "

Algebra.Com's Answer #325199 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "finding the center of a circle with the equation
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document.write( "Note: Standard Form of an Equation of a Circle is 
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document.write( "where Pt(h,k) is the center and r is the radius\r
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document.write( "x^2 + y^2 + 2x + 4y – 9 = 0  |completing Squares
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document.write( " (x+1)^2 -1 + (y + 2)^2 -4  -9 = 0
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document.write( "   (x+1)^2 + (y+2)^2 = 14
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document.write( "    C(-1,-2) \n" );
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