document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=137041>Question 137041</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0130442631/algebrahomeworkh>Algebra 1</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> How do I find the equation of the line that contains the points (2,3) and (4,7)? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #100301 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=100301\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (2,3) and (4,7)<BR>\n" );
document.write( "SLOPE=(7-3)/(4-2)=4/2=2<BR>\n" );
document.write( "Y=mX+b<BR>\n" );
document.write( "3=2*2+b<BR>\n" );
document.write( "3=4+b<BR>\n" );
document.write( "3-4=b<BR>\n" );
document.write( "b=-1<BR>\n" );
document.write( "THUS THE LINE EQUATION IS:<BR>\n" );
document.write( "Y=2X-1<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+y+=+2x+-1+%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+y+=+2x+-1+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = 2x -1 ).  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );