document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=387068>Question 387068</A>: <I><SPAN STYLE=\"word-break: break-all;\"> this is a tough one!<BR>\n" );
document.write( "In 1994 the life expectancy of males in a certain country was 63.5 years.  In 1999, it was 66.9 years.  Let E represent the life expectancy in year t and let t represent the number of years since 1994.<BR>\n" );
document.write( "The linear fuction E(t) that fits the data is<BR>\n" );
document.write( "E(t)=_t+_  (round to the nearest)\r<BR>\n" );
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document.write( "Use the function to predict the life expectancy of males in 2008.<BR>\n" );
document.write( "E(14)=_<BR>\n" );
document.write( "(round to the nearest) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #273615 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=273615\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The \"slope\" is (66.9 - 63.5)/5 = .68, and E(0) = 63.5. Therefore the function should be E(t) = 63.5 + .68t.\r<BR>\n" );
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document.write( "E(14) = 63.5 + .68(14) = 73.02 years </SPAN>\n" );
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