document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=451994>Question 451994</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the circle c1 has centre a and equation x2+y2-6x+2y-15=0<BR>\n" );
document.write( "find the co-ordinates of A and the radius of C </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #310735 by </B><A HREF=/tutors/aboutme.mpl?userid=Gogonati><B>Gogonati(855)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Gogonati><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/cgi-bin/show-face.mpl?user=Gogonati><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=310735\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First write the equation of the circle in the standard form.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2-6x%2B9%29-9%2B%28y%5E2%2B2y%2B1%29-1-15=0 ALIGN=MIDDLE  ALT=\"%28x%5E2-6x%2B9%29-9%2B%28y%5E2%2B2y%2B1%29-1-15=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >=><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x-3%29%5E2%2B%28y%2B1%29%5E2=5%5E2 ALIGN=MIDDLE  ALT=\"%28x-3%29%5E2%2B%28y%2B1%29%5E2=5%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, from the final\r<BR>\n" );
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document.write( "equation we conclude that the center of the circle is (3, -1) and the radius 5. </SPAN>\n" );
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