document.write( "Question 388029: Find the radius of the circle defined by the equation: x^2+y^2-10x+4y+4=0. \n" ); document.write( "

Algebra.Com's Answer #274336 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,         
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document.write( "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
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document.write( "x^2+y^2-10x+4y+4=0
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document.write( "completing the squares to put into the standard form
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document.write( "x^2 -10x + y^2 +4y + 4 = 0
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document.write( "(x-5)^2 -25 + (y +2)^2 - 4 + 4 = 0
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document.write( "  (x-5)^2 + (y+2)^2 = 25
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document.write( "Center is (5,-2) radius = 5
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