document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1117232>Question 1117232</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi there,<BR>\n" );
document.write( "I was taking the EOC today to test out and this question came up. I have no clue what this is or how to solve it. Please solve and explain what this is and how to do problems like these.\r<BR>\n" );
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document.write( "Find the radius of a circle with the equation x^2+y^2-6x-12y=0\r<BR>\n" );
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document.write( "Thanks so much, Fawn </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #732238 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=732238\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Find the radius of a circle with the equation x^2+y^2-6x-12y=0<BR>\n" );
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document.write( "x^2+y^2-6x-12y=0<BR>\n" );
document.write( "x^2-6x + y^2-12y = 0<BR>\n" );
document.write( "Complete the squares for x & y<BR>\n" );
document.write( "x^2-6x+9 + y^2-12y+36 = 0+9+36<BR>\n" );
document.write( "x^2-6x+9 + y^2-12y+36 = r^2 = 45<BR>\n" );
document.write( "r = sqrt(45) = 3sqrt(5)<BR>\n" );
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document.write( "PS  Tho you didn't ask:<BR>\n" );
document.write( "(x-3)^2 + (y-6)^2 = 45 --> the center at (3,6)<BR>\n" );
document.write( " </SPAN>\n" );
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