document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=544554>Question 544554</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Graph: x^2 - 4x + y^2 + 6y + 4 = 0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #355194 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=355194\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2+-+4x+%2B+y%5E2+%2B+6y+%2B+4+=+0 ALIGN=MIDDLE  ALT=\"x%5E2+-+4x+%2B+y%5E2+%2B+6y+%2B+4+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Adding 9 to both sides we get<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2+-+4x+%2B+4%29+%2B+%28y%5E2+%2B+6y+%2B+9%29+=+9 ALIGN=MIDDLE  ALT=\"%28x%5E2+-+4x+%2B+4%29+%2B+%28y%5E2+%2B+6y+%2B+9%29+=+9\"   DISABLED_style= \"max-width:90%; height:auto;\" > ---> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x+-+2%29%5E2+%2B+%28y+%2B+3%29%5E2+=+3%5E2 ALIGN=MIDDLE  ALT=\"%28x+-+2%29%5E2+%2B+%28y+%2B+3%29%5E2+=+3%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "You could read that last equation as meaning that the distance between a point (x,y) and point (2,-3) is 3.<BR>\n" );
document.write( "That is the equation of a circle of radius 3, centered at (2,-3). </SPAN>\n" );
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