document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=303239>Question 303239</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2.  Write the slope intercept from the equation that passes through the points (2,7) and (-1,-11). </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #217320 by </B><A HREF=/tutors/aboutme.mpl?userid=texttutoring><B>texttutoring(324)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=texttutoring><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=texttutoring><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=217320\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First use the equation for the slope of a line:\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "slope = m = (y2-y1 / x2-x1)\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "m = (-11 - 7 / -1 - 2)<BR>\n" );
document.write( "m = -18/-3<BR>\n" );
document.write( "m=6\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Now use the equation of a line, y=mx+b. You now know m, and you know y and x from either of the two points (2,7) or (-1,-11)\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "y=mx+b<BR>\n" );
document.write( "7=6*2 + b<BR>\n" );
document.write( "7=12+b<BR>\n" );
document.write( "7-12=b<BR>\n" );
document.write( "-5 = b\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Putting it all together, with m=6 and b=-5, the equation of the line is:\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "y=6x-5 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );