document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=207610>Question 207610</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A line passes through the points P(4,0) and Q(6,-4). <BR>\n" );
document.write( "a) Calculate the slope of the line.<BR>\n" );
document.write( "b) Write the equation of the line in slope-intercept form.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #156994 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=156994\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Y=mX+b<BR>\n" );
document.write( "m=slope=(y2-y1)/(x2-x1)=(-4-0)/6-4)=-4/2=-2 is the slope.<BR>\n" );
document.write( "a)=-2<BR>\n" );
document.write( "0=-2*4+b<BR>\n" );
document.write( "0=-8+b<BR>\n" );
document.write( "b=8 is the y intercept.<BR>\n" );
document.write( "b) Y=-2X+8 <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+-2x+%2B8%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-2x+%2B8%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, -2x +8).  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );