document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=198309>Question 198309</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A driver notices that after driving 100 miles there are 12.8 gallons of fuel left in her car's tank.  After driving 300 miles she notices that there are only 6.4 gallons left in the tank.\r<BR>\n" );
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document.write( "A) Determine a linear function that will give the number of gallons left in the tank as a function of the number of miles driven.\r<BR>\n" );
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document.write( "B)Based on this model how much  fuel does the tank hold? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #148781 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=148781\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A driver notices that after driving 100 miles there are 12.8 gallons of fuel left in her car's tank. After driving 300 miles she notices that there are only 6.4 gallons left in the tank.<BR>\n" );
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document.write( "You have two points: (12.8,100), (6.4,300)<BR>\n" );
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document.write( "A) Determine a linear function that will give the number of gallons left in the tank as a function of the number of miles driven.<BR>\n" );
document.write( "slope = (300-100)/(6.4-12.8) = 200/-6.4 = -31.25<BR>\n" );
document.write( "intercept: 100 = -31.25*12.8 + b<BR>\n" );
document.write( "b = 500<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "GL(m) = -31.25m + 500<BR>\n" );
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document.write( "B)Based on this model how much fuel does the tank hold?<BR>\n" );
document.write( "If the miles = 0 the Gas Left is 500 gallons<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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