document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=117320>Question 117320</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello I really need some help with this math problem it deal with Coordinate Geometry: Linear Equations in Two Variables.\r<BR>\n" );
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document.write( "What is the equation of the line that contains the points with (x,y) coordinates (-3,7) and (5,-1) ?\r<BR>\n" );
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document.write( "I don't have clue how to set this type of problem up, please help.<BR>\n" );
document.write( "thanks\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #85349 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=85349\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> FIRST YOU NEED TO FIND THE SLOPE:<BR>\n" );
document.write( "SLOPE=(Y2-Y1)/(X2-X1)<BR>\n" );
document.write( "SLOPE=(-1-7)/(5+3)<BR>\n" );
document.write( "SLOPE=-8/8<BR>\n" );
document.write( "SLOPE=-1 <BR>\n" );
document.write( "USING THE SLOPE (m) AND A SET OF (X,Y) VALUES IN THE LINE EQUATION Y=mX+b SOLVE FOR (b), THE Y INTERCEPT. <BR>\n" );
document.write( "7=-1*-3+b<BR>\n" );
document.write( "7=3+b<BR>\n" );
document.write( "b=7-3<BR>\n" );
document.write( "b=4<BR>\n" );
document.write( "THUS THE EQUATION IS:<BR>\n" );
document.write( "Y=-X+4 </SPAN>\n" );
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