document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=992559>Question 992559</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me with this problem: Determine whether the equation x^2+y^2-4x+2y=9 represents a circle, a point, or no graph.\r<BR>\n" );
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document.write( "I know that if there's a graph it should represent a circle, but i'm having trouble factoring properly. <BR>\n" );
document.write( "Thanks!  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #612141 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=612141\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Determine whether the equation x^2+y^2-4x+2y=9 represents a circle, a point, or no graph. <BR>\n" );
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document.write( "Complete the square on the x and on the y terms::<BR>\n" );
document.write( "x^2-4x+4 + y^2+2y+1) = 9+4+1<BR>\n" );
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document.write( "(x-2)^2 + (y+1)^2 = 14<BR>\n" );
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document.write( "Circle with center at (2,-1) and radius = sqrt(14)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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