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document.write( "Hi,\r
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document.write( "x^2 +y^2 +6x -2y-6=0 graph the circle
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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\r
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document.write( "Completing the squares:
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document.write( "x^2 +y^2 +6x -2y-6= (x+3)^2 + (y-1)^2 -9 -1 - 6 = 0
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document.write( " (x+3)^2 + (y-1)^2 = 16
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document.write( "Circle with C(-3, 1) radius 4
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