document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=317620>Question 317620</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the equation of a line containing the points (-2,-4),(-8,-7).<BR>\n" );
document.write( "I have tried to but i am not understanding. I do really good until I get to the end. I keep following the examples in my lesson but I don't understand how they are getting the answers they are getting </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #227429 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=227429\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (-2,-4),(-8,-7).<BR>\n" );
document.write( "Y=mX+b is the line equation.<BR>\n" );
document.write( "m=the slope=(Y2-Y1)/(X2-X1)<BR>\n" );
document.write( "b=the Y intercept.<BR>\n" );
document.write( "m=(-7+4)/(-8+2)=-3/-6=1/2 ans. for the slope.<BR>\n" );
document.write( "-4=1/2*-2+b<BR>\n" );
document.write( "-4=-1+b<BR>\n" );
document.write( "b=-4+1<BR>\n" );
document.write( "-3 ans. for the Y intercept.<BR>\n" );
document.write( "y=x/2-3 is this line equation.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-10%2C+5%2C+-10%2C+10%2C+x%2F2+-3%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-10%2C+5%2C+-10%2C+10%2C+x%2F2+-3%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > (graph 300x200 pixels, x from -10 to 5, y from -10 to 10, x/2 -3). <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );