document.write( "Question 166252: Given: (3,-1) and (-11,7) are endpoints of a diameter of a cirle.
\n" ); document.write( "Find the radius, center coordinates, and equation in general form
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Algebra.Com's Answer #122517 by stanbon(75887)\"\" \"About 
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Given: (3,-1) and (-11,7) are endpoints of a diameter of a cirle.
\n" ); document.write( "Find the radius, center coordinates, and equation in general form
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\n" ); document.write( "Center Coordinates:
\n" ); document.write( "x coordinate: (3-11)/2 = -4
\n" ); document.write( "y coordinate: (-1+7)/2 = 3
\n" ); document.write( "Center: (-4,3)
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\n" ); document.write( "Radius:
\n" ); document.write( "r = sqrt[(3--4)^2 + (-1-3)^2] = sqrt[49 + 16] = sqrt(65)
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\n" ); document.write( "EQUATION:
\n" ); document.write( "(x+4)^2 + (y-3)^2 = 65
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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