document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=902081>Question 902081</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The boiling point of water can be modeled as a linear function of altitude. The boiling point of water at sea level is 212°F, and the boiling point of water at 1100 ft above sea level is 210°F. \r<BR>\n" );
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document.write( "a. Express the boiling point as a function of altitude.<BR>\n" );
document.write( "b. Graph the relationship between boiling point and altitude.<BR>\n" );
document.write( "c. Find the boiling point of water at an altitude of 11,000 ft. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #547072 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=547072\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Identify two points.<BR>\n" );
document.write( "(0,212) and (1100,210).\r<BR>\n" );
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document.write( "Slope, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=%28210-212%29%2F%281100-0%29=-2%2F1100=highlight_green%28-%281%2F550%29%29 ALIGN=MIDDLE  ALT=\"m=%28210-212%29%2F%281100-0%29=-2%2F1100=highlight_green%28-%281%2F550%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=mx%2Bb ALIGN=MIDDLE  ALT=\"y=mx%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=y-mx ALIGN=MIDDLE  ALT=\"b=y-mx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b ALIGN=MIDDLE  ALT=\"b\"   DISABLED_style= \"max-width:90%; height:auto;\" >=....  the y intercept is already found as given.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=-%281%2F550%29x%2B212%29 ALIGN=MIDDLE  ALT=\"highlight%28y=-%281%2F550%29x%2B212%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28400%2C400%2C-10%2C1500%2C200%2C220%2C-x%2F550%2B212%29 ALIGN=MIDDLE  ALT=\"graph%28400%2C400%2C-10%2C1500%2C200%2C220%2C-x%2F550%2B212%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "A view from farther away,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28400%2C400%2C-10%2C1500%2C-10%2C220%2C-x%2F550%2B212%29 ALIGN=MIDDLE  ALT=\"graph%28400%2C400%2C-10%2C1500%2C-10%2C220%2C-x%2F550%2B212%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "For boiling point at 11000 feet, just set x=11000 and evaluate y. </SPAN>\n" );
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