document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=185956>Question 185956</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Could someone please help me find the equation of the line that goes through the points (-4,2) and (-3,-7).  I am terrible at graphing and equations and in need of help.  Thanks for your help in advance. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #139426 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=139426\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Could someone please help me find the equation of the line that goes through the points (-4,2) and (-3,-7). I am terrible at graphing and equations and in need of help. Thanks for your help in advance.<BR>\n" );
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document.write( "1st find the slope of the line thru the points.<BR>\n" );
document.write( "Slope, m, is diff in y/diff in x<BR>\n" );
document.write( "m = (-7-2)/(-3-(-4))<BR>\n" );
document.write( "m = -9/1<BR>\n" );
document.write( "m = -9<BR>\n" );
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document.write( "Then, use this formula.<BR>\n" );
document.write( "y-y1 = m*(x-x1) where (x1,y1) is either point.<BR>\n" );
document.write( "y-2 = -9*(x+4)<BR>\n" );
document.write( "y-2 = -9x-36<BR>\n" );
document.write( "y = -9x - 34<BR>\n" );
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document.write( "That always works.  If you sub -4 for x, y = 2.  Same for the other point. </SPAN>\n" );
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