document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=392820>Question 392820</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Laura is driving to Seattle. Suppose that the remaining distance to drive (in miles) is a linear function of her driving time (in minutes). When graphed, the function gives a line with a slope of -0.75 . See the figure below.<BR>\n" );
document.write( "Laura has 51 miles remaining after 33 minutes of driving. How many miles were remaining after 15 minutes of driving? <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 #278855 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=278855\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Laura is driving to Seattle. Suppose that the remaining distance to drive (in miles) is a linear function of her driving time (in minutes). <BR>\n" );
document.write( "When graphed, the function gives a line with a slope of -0.75 . <BR>\n" );
document.write( "See the figure below.<BR>\n" );
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document.write( "Write the linear function as <BR>\n" );
document.write( "remaining distance = -0.75(drive time) + (intercept)<BR>\n" );
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document.write( "Laura has 51 miles remaining after 33 minutes of driving. <BR>\n" );
document.write( "That gives you the following:<BR>\n" );
document.write( "51 = -0.75(33) + intercept<BR>\n" );
document.write( "intercept = 75.75<BR>\n" );
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document.write( "Equation is rd = -0.75t + 75.75<BR>\n" );
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document.write( "How many miles were remaining after 15 minutes of driving?<BR>\n" );
document.write( "rd(15) = -0.75*15+75.75<BR>\n" );
document.write( "rd(15) = 64.5 miles  <BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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