document.write( "Question 707702: What is the equation of a circle with center (5,-7) and diameter 6? \n" ); document.write( "
Algebra.Com's Answer #435830 by nerdybill(7384)\"\" \"About 
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What is the equation of a circle with center (5,-7) and diameter 6?
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\n" ); document.write( "Standard form of a circle is:
\n" ); document.write( "(x-h)^2 + (y-k)^2 = r^2
\n" ); document.write( "where
\n" ); document.write( "(h,k) is the vertex or center
\n" ); document.write( "and
\n" ); document.write( "r is the radius
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\n" ); document.write( "if diameter is 6
\n" ); document.write( "radius (r) is 6/2 or 3
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\n" ); document.write( "Plug into circle equation:
\n" ); document.write( "(x-5)^2 + (y-(-7))^2 = 3^2
\n" ); document.write( "(x-5)^2 + (y+7)^2 = 9
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