document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=185353>Question 185353</A>: <I><SPAN STYLE=\"word-break: break-all;\"> It is 76 degrees F at the 6000-foot level of a mountain, and 49 degrees F at the 12000-foot level of a mountain. Write a linear equation to find the temperature T at an elsevation e on the mountain, where e is in thousands of feet. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #139103 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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/cgi-bin/show-face.mpl?user=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=139103\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> It is 76 degrees F at the 6000-foot level of a mountain, and 49 degrees<BR>\n" );
document.write( " F at the 12000-foot level of a mountain. <BR>\n" );
document.write( "Write a linear equation to find the temperature T at an elevation e on the<BR>\n" );
document.write( " mountain, where e is in thousands of feet.:<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Find the slope using the slope formula: m = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28y2-y1%29%2F%28x2-x1%29 ALIGN=MIDDLE  ALT=\"%28y2-y1%29%2F%28x2-x1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Assign the given values as follows<BR>\n" );
document.write( "x1 = 6 (for 6000 ft);  y1 = 76<BR>\n" );
document.write( "x2 = 12(for 12000ft);  y2 = 49<BR>\n" );
document.write( ":<BR>\n" );
document.write( "m = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2849-76%29%2F%2812-6%29 ALIGN=MIDDLE  ALT=\"%2849-76%29%2F%2812-6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-27%29%2F6 ALIGN=MIDDLE  ALT=\"%28-27%29%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-9%2F2 ALIGN=MIDDLE  ALT=\"-9%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ";<BR>\n" );
document.write( "Use the point slope equation y - y1 = m(x - x1) so create the equation<BR>\n" );
document.write( "y - 76 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-9%2F2 ALIGN=MIDDLE  ALT=\"-9%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >(x - 6)<BR>\n" );
document.write( "y - 76 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-9%2F2 ALIGN=MIDDLE  ALT=\"-9%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >x - (-27)<BR>\n" );
document.write( "y - 76 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-9%2F2 ALIGN=MIDDLE  ALT=\"-9%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >x + 27 + 76<BR>\n" );
document.write( "y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-9%2F2 ALIGN=MIDDLE  ALT=\"-9%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >x + 103; is the equation<BR>\n" );
document.write( "Using e and T<BR>\n" );
document.write( "T = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-9%2F2 ALIGN=MIDDLE  ALT=\"-9%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >e + 103<BR>\n" );
document.write( ":<BR>\n" );
document.write( "A graph would look like this:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-10%2C+20%2C+-20%2C+120%2C+%28-9%2F2%29x%2B103%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-10%2C+20%2C+-20%2C+120%2C+%28-9%2F2%29x%2B103%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "where elevation is the horizontal and Temp is the vertical<BR>\n" );
document.write( ";<BR>\n" );
document.write( "Sorry for the initial screw-up here. Carl <BR>\n" );
document.write( " </SPAN>\n" );
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