document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=163717>Question 163717</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 3.	The points (3, 9), (5, 13), (15, 33), (34, 71), (678, 1359), and (1234, 2471) all lie on line M.<BR>\n" );
document.write( "The points (3, -9), (5, -11), (15, -21), (34, -40), (678, -684), and (1234, -1240) all lie on line N.<BR>\n" );
document.write( "a.	Form the equations of both the lines.  Show your work.  <BR>\n" );
document.write( "b.	What are the co-ordinates of the point of intersection of lines M and N?<BR>\n" );
document.write( "c.	Write the co-ordinates of the intersections of lines M and N with the x-axis.<BR>\n" );
document.write( "d.	Write the co-ordinates of the intersection of lines M and N with the y-axis. \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 #120612 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=120612\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Y=mX+b<BR>\n" );
document.write( "line M:<BR>\n" );
document.write( "slope=(13-9)/(5-3)=4/2=2<BR>\n" );
document.write( "9=2*3+b<BR>\n" );
document.write( "b=9-6<BR>\n" );
document.write( "b=3 for the y intercept.<BR>\n" );
document.write( "y=2x+3 (red line)<BR>\n" );
document.write( "line N:<BR>\n" );
document.write( "slope=(-11+9)/(5-3)=-2/2=-1<BR>\n" );
document.write( "-9=-1*3+b<BR>\n" );
document.write( "b=-9+3<BR>\n" );
document.write( "b=6<BR>\n" );
document.write( "y=-x+6 (green line)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-6%2C+10%2C+-10%2C+10%2C+2x+%2B3%2C+-x+%2B6%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-6%2C+10%2C+-10%2C+10%2C+2x+%2B3%2C+-x+%2B6%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > (graph 300x200 pixels, x from -6 to 10, y from -10 to 10, of TWO functions 2x +3 and -x +6).<BR>\n" );
document.write( "Solutionis (1,5)<BR>\n" );
document.write( "x axis intercepts are -1.5 red & 6 green. <BR>\n" );
document.write( "y axis intercepts are 3 red & 6 green. </SPAN>\n" );
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