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document.write( "Hi,
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document.write( "circle whose diameter has endpoints (4, -1) and (-6, 7).
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document.write( "D = 
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document.write( "D = 
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document.write( "r = 
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document.write( "Midpoint Pt(x,y): (
,
)\r
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document.write( "Midpoint Pt(x,y): (-2/2 , 6/2) 0r (-1,3)
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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( "
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document.write( "
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document.write( "
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document.write( "