document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=150668>Question 150668</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In 1995 the life expectancy of a male in a certain country was 62.6 years In 2001 it was 64.9 years Let E represent the life expectancy in year t and let t represent the number of years since 1995\r<BR>\n" );
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document.write( "The linear function E(t) that fits the data is\r<BR>\n" );
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document.write( "E(t)= t + <BR>\n" );
document.write( "(round to the nearest tenth)\r<BR>\n" );
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document.write( "Use the function to predict the life expectancy of males in 2005<BR>\n" );
document.write( "E(14)=<BR>\n" );
document.write( "(round to the nearest tenth)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #110598 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=110598\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In 1995 the life expectancy of a male in a certain country was 62.6 years In 2001 it was 64.9 years Let E represent the life expectancy in year t and let t represent the number of years since 1995 <BR>\n" );
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document.write( "You have two points: (0,62.6) and (6,64.9), where x is the number of years after<BR>\n" );
document.write( "1995.<BR>\n" );
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document.write( "slope: (64.9-62.6)/(6-0) = 2.3/6 = 23/60<BR>\n" );
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document.write( "intercept: when x = 0, y = 62.6<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( " E(t) = (23/60)t + 62.6<BR>\n" );
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document.write( "The linear function E(t) that fits the data is <BR>\n" );
document.write( "(round to the nearest tenth) <BR>\n" );
document.write( "Use the function to predict the life expectancy of males in 2005<BR>\n" );
document.write( "E(14)= (23/60)*14 + 62.6<BR>\n" );
document.write( "E(14) = 68.0<BR>\n" );
document.write( "(round to the nearest tenth)<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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