document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=395087>Question 395087</A>: <I><SPAN STYLE=\"word-break: break-all;\"> can you help? in 1990 the life expectancy was 62.3 yrs and in 1995 it was 65.8 using the linear function E(t), what is the life expectancy of males in 2003 using E(13). Thank you! Shelly </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #280397 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=280397\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> in 1990 the life expectancy was 62.3 yrs and in 1995 it was 65.8 using the linear function E(t), what is the life expectancy of males in 2003 using E(13).<BR>\n" );
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document.write( "You have 2 points: (0,62.3) and (5,65.8)<BR>\n" );
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document.write( "slope = (65.8-62.3)/(5-0) = 0.7<BR>\n" );
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document.write( "Form: y = mx + b<BR>\n" );
document.write( "The y-intercept is 62.3.<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "E(x) = 0.7x+62.3<BR>\n" );
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document.write( "So, E(13) = 0.7(13)+62.3 = 71.4 yrs (life expect. in 2003)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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