document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1104227>Question 1104227</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The volume of gas in your car’s gas tank depends on the number of miles you have driven. <BR>\n" );
document.write( "Suppose you leave home with a full tank and begin driving at a constant speed. After driving 120 miles you have 12 gallons in your tank. <BR>\n" );
document.write( "After driving 220 miles you have 8.66 gallons in your tank. <BR>\n" );
document.write( "Assume the relationship is linear. \r<BR>\n" );
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document.write( "a. Find a function that models this situation.  (Input miles driven and output gallons of gas in your tank.)\r<BR>\n" );
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document.write( "b. How many gallons does your gas tank hold when full?\r<BR>\n" );
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document.write( "c. How many miles can you drive before you will run out of gas?\r<BR>\n" );
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document.write( "d. What is your car's approximate fuel efficiency in miles per gallon?\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 #718963 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</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=718963\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Application for a linear equation.<BR>\n" );
document.write( "Your data points for ordered pair are x for miles driven, and y for volume of fuel in the tank.\r<BR>\n" );
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document.write( "The two points are  (120, 12) and (220, 8.66).<BR>\n" );
document.write( "Find the equation of the line with these two points.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2812-8.66%29%2F%28120-220%29=3.34%2F%28-100%29=-0.0334 ALIGN=MIDDLE  ALT=\"%2812-8.66%29%2F%28120-220%29=3.34%2F%28-100%29=-0.0334\"   DISABLED_style= \"max-width:90%; height:auto;\" >, slope\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-12=-0.0334%28x-120%29 ALIGN=MIDDLE  ALT=\"y-12=-0.0334%28x-120%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=-0.0334%28x-120%29%2B12 ALIGN=MIDDLE  ALT=\"y=-0.0334%28x-120%29%2B12\"   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=-0.0334x%2B12%2B4.008 ALIGN=MIDDLE  ALT=\"y=-0.0334x%2B12%2B4.008\"   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=highlight%28y=-0.0334x%2B16.008%29 ALIGN=MIDDLE  ALT=\"highlight%28y=-0.0334x%2B16.008%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Full tank holds 16 gallons of fuel.  (If you want to three significant figures).\r<BR>\n" );
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document.write( "Fuel Efficiency was <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=100%2F3.34=30 ALIGN=MIDDLE  ALT=\"100%2F3.34=30\"   DISABLED_style= \"max-width:90%; height:auto;\" >, THIRTY miles per gallon, (if to three significant figures, then 30.0 mpg). </SPAN>\n" );
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