document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=287213>Question 287213</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The line through the points (m, -9) and (7, m) has slope m. What is the value of m?\r<BR>\n" );
document.write( "\n" );
document.write( "A. 3  B. -7/9  C. 16  D. 5  E. None of these </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #208205 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=208205\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (-9-m)/(m-7)=m<BR>\n" );
document.write( "-9-m=m^2-7m<BR>\n" );
document.write( "0=m^2-6m+9<BR>\n" );
document.write( "0=(m-3)^2<BR>\n" );
document.write( "m=3\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "substituting 3 for m\r<BR>\n" );
document.write( "\n" );
document.write( "-9-3/3-7=3<BR>\n" );
document.write( "-12/-4=3<BR>\n" );
document.write( "3=3<BR>\n" );
document.write( "ok<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );