document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=438023>Question 438023</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need to graph this circle. <BR>\n" );
document.write( "x^2+y^2+4x-8y-5=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #303002 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=303002\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I need to graph this circle. <BR>\n" );
document.write( "x^2+y^2+4x-8y-5=0<BR>\n" );
document.write( "..<BR>\n" );
document.write( "x^2+y^2+4x-8y-5=0<BR>\n" );
document.write( "completing the square<BR>\n" );
document.write( "(x^2+4x+4)+(y^2-8y+16)=0+4+16=20<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "(x+2)^2+(y-4)^2=20\r<BR>\n" );
document.write( "\n" );
document.write( "This is a circle with center at (-2/4) with a radius of sqrt(20)=4.47..<BR>\n" );
document.write( "see graph below:<BR>\n" );
document.write( "..<BR>\n" );
document.write( "y=4+((20-(x+2)^2))^.5\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+300%2C+-10+%2C+10%2C-10%2C+10%2C+4%2B%2820-%28x%2B2%29%5E2%29%5E.5%2C++4-%2820-%28x%2B2%29%5E2%29%5E.5%29+ ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );