document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=687969>Question 687969</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help....\r<BR>\n" );
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document.write( "In the example below give the centre and radius of the circle.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X%5E2%2By%5E2-2x-6y%2B1=0 ALIGN=MIDDLE  ALT=\"X%5E2%2By%5E2-2x-6y%2B1=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #425431 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=425431\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Complete the square for both x and y.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-2x%2By%5E2-6y%2B1=0 ALIGN=MIDDLE  ALT=\"x%5E2-2x%2By%5E2-6y%2B1=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-2x%2By%5E2-6y=-1 ALIGN=MIDDLE  ALT=\"x%5E2-2x%2By%5E2-6y=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-2x%2B1%2By%5E2-6y=-1%2B1 ALIGN=MIDDLE  ALT=\"x%5E2-2x%2B1%2By%5E2-6y=-1%2B1\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x-1%29%5E2%2B%28y-3%29%5E2=9 ALIGN=MIDDLE  ALT=\"%28x-1%29%5E2%2B%28y-3%29%5E2=9\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x-1%29%5E2%2B%28y-3%29%5E2=3%5E2 ALIGN=MIDDLE  ALT=\"%28x-1%29%5E2%2B%28y-3%29%5E2=3%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So the center is (1, 3) and the radius is 3.\r<BR>\n" );
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document.write( "Note: recall that the general form of a circle is (x-h)^2+(y-k)^2=r^2 where (h,k) is the center and r is the length of the radius. </SPAN>\n" );
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