document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=510115>Question 510115</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm supposed to find the standard form of the equation of a circle. The question is center at the origin containing the point: (-2,3). I have no idea where to begin. I've been working on this problem for about 2 hours. That answer in the back of the book is x^2+y^2=13.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #341722 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=341722\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the general equation of a circle is ___ (x - h)^2 + (y - k)^2 = r^2<BR>\n" );
document.write( "___ this is a circle centered at (h,k) with a radius of r\r<BR>\n" );
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document.write( "the circle in this question is centered at the origin (0,0)\r<BR>\n" );
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document.write( "the radius is the distance from the origin to (-2,3)\r<BR>\n" );
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document.write( "using the distance formula ___ (-2 - 0)^2 + (3 - 0)^2 = r^2 </SPAN>\n" );
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