document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1063193>Question 1063193</A>: <I><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
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document.write( "Suppose that the monthly cost of a long-distance phone plan (in dollars) is a linear function of the total calling time (in minutes). When graphed, the function gives a line with a slope of <BR>\n" );
document.write( "0.09\r<BR>\n" );
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document.write( ". See the figure below.<BR>\n" );
document.write( "The monthly cost for <BR>\n" );
document.write( "47\r<BR>\n" );
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document.write( " minutes of calls is <BR>\n" );
document.write( "$12.76\r<BR>\n" );
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document.write( ". What is the monthly cost for <BR>\n" );
document.write( "44\r<BR>\n" );
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document.write( " minutes of calls<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 #678240 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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/cgi-bin/show-face.mpl?user=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=678240\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> slope = (y(2) - y(1)) / (x(2) - x(1))<BR>\n" );
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document.write( "0.09 = (12.76 - (y(1)) / (47 - 44)<BR>\n" );
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document.write( "12.76 - y(1) = 0.27<BR>\n" );
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document.write( "-y(1) = -12.49 <BR>\n" );
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document.write( "y(1) = 12.49<BR>\n" );
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document.write( "The monthly cost of 44 minutes is $12.49<BR>\n" );
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