document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=934426>Question 934426</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If the equation of a circle is x^2+y^2-2x+4y-11=0 and the co-ordinate A (2, -1) is the midpoint, of a chord, how do you find you the equation of the chord? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #567419 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=567419\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find center and radius of the circle.  Maybe you do not need the radius.<BR>\n" );
document.write( "Find slope of the line containing the circle's center and point A.<BR>\n" );
document.write( "Form the negative reciprocal of that line, and call this slope, m.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Find using point-slope form, the linear equation using point A(2,-1),<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-%28-1%29=m%28x-2%29 ALIGN=MIDDLE  ALT=\"y-%28-1%29=m%28x-2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and simplify or arrange into the form you want.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "You need to complete the square on the equation of the circle and put into standard form so you can directly read the x and y coordinates for the center of this circle. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );