document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=32264>Question 32264</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The cost of renting a car for a day is given by the linear function c(x) = 1/8 + 20 where c(x) is in dollars and x is the number of miles driven.<BR>\n" );
document.write( "1. What is the cost of driving the care 180 miles?<BR>\n" );
document.write( "2. How many miles could you drive if you had a budget of $100.<BR>\n" );
document.write( "3. Explain the meaning of the 1/8 in the equation and what it represents in this context.<BR>\n" );
document.write( "4. Explain the meaning of the 20 in the equation and what it represents in this context.<BR>\n" );
document.write( "5. Graph c on the axes  and label at least 3 points on a graph. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #19086 by </B><A HREF=/tutors/aboutme.mpl?userid=mukhopadhyay><B>mukhopadhyay(490)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mukhopadhyay><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=19086\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I think the function will be c(x) = (1/8)x + 20<BR>\n" );
document.write( "1. c(180) = 180/8 + 20 = 45/2 + 20 = $42.50<BR>\n" );
document.write( "2. 100 = x/8 + 20 => x=8(80) => x=640<BR>\n" );
document.write( "3. It represents the variable cost per mile; varies by number of miles driven.<BR>\n" );
document.write( "4. It represents a flat charge that the renter must pay, even if the car is not driven at all.<BR>\n" );
document.write( "5. This is a linear function.  Pick any two x's and find c(x) for those x's.  Connect the dots as a staright line. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );