document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=503865>Question 503865</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the midpoint of cd is m(-3,-7). if the coordinates of c are (-2,-10), what are the coordinates of d? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #339431 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=339431\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the midpoint of cd is m(-3,-7). if the coordinates of c are (-2,-10), what are the coordinates of d?<BR>\n" );
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document.write( "The midpoint coordinates are the average of the end-point coordinates.<BR>\n" );
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document.write( "Let the coordinates of d be (x,y)<BR>\n" );
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document.write( "Solve:<BR>\n" );
document.write( "(x+-2)/2 = -3<BR>\n" );
document.write( "(y+-10)/2 = -7<BR>\n" );
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document.write( "x-2 = -6<BR>\n" );
document.write( "y-10 = -14<BR>\n" );
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document.write( "x = = -4<BR>\n" );
document.write( "y = -4<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============ </SPAN>\n" );
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