document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1207932>Question 1207932</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find an equation of the line containing the centers of the two circles:\r<BR>\n" );
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document.write( "x^2 + y^2- 4x + 6y + 4 = 0 and x^2 + y^2 + 6x + 4y + 9 = 0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #846072 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=846072\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Put each equation into the form needed, and you can then read the center points directly from each equation.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-4x%2By%5E2%2B6y=-4 ALIGN=MIDDLE  ALT=\"x%5E2-4x%2By%5E2%2B6y=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Without explanation, the terms needed for complete-the -squares are  4 and 9.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-4x%2B4%2By%5E2%2B6y%2B9=-4%2B4%2B9 ALIGN=MIDDLE  ALT=\"x%5E2-4x%2B4%2By%5E2%2B6y%2B9=-4%2B4%2B9\"   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-2%29%5E2%2B%28y%2B3%29%5E2=9 ALIGN=MIDDLE  ALT=\"%28x-2%29%5E2%2B%28y%2B3%29%5E2=9\"   DISABLED_style= \"max-width:90%; height:auto;\" >----------and this is for the first equation, showing that center point is (2, -3).\r<BR>\n" );
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document.write( "YOU do the other equation, and use the two centers to find the line asked-for. </SPAN>\n" );
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