document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=235985>Question 235985</A>: <I><SPAN STYLE=\"word-break: break-all;\"> in 1995 the life span of males in a certain country was 64.7 years. in 2001 it was 66.7 years. Let E represent the life span in year t represent the number of years since 1995.<BR>\n" );
document.write( "E(t)=____t+____<BR>\n" );
document.write( "E(11)= <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 #173782 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=173782\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> in 1995 the life span of males in a certain country was 64.7 years. in 2001 it was 66.7 years. Let E represent the life span in year t represent the number of years since 1995.<BR>\n" );
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document.write( "Find the slope<BR>\n" );
document.write( "In 1995; x1=0 and y1=64.7<BR>\n" );
document.write( "In 2001; x2=6 and y2=66.7<BR>\n" );
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document.write( "Find the slope (m) using the slope equation: m = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28y2-y1%29%2F%28x2-x1%29 ALIGN=MIDDLE  ALT=\"%28y2-y1%29%2F%28x2-x1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "m = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2866.7-64.7%29%2F%286+-+0%29%29 ALIGN=MIDDLE  ALT=\"%2866.7-64.7%29%2F%286+-+0%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%29%2F6 ALIGN=MIDDLE  ALT=\"%282%29%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F3 ALIGN=MIDDLE  ALT=\"1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "therefore:<BR>\n" );
document.write( "The Linear function E(t) that fits the data is.<BR>\n" );
document.write( "E(t)= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F3 ALIGN=MIDDLE  ALT=\"1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >t + 64.7<BR>\n" );
document.write( ":<BR>\n" );
document.write( "E(11)= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F3 ALIGN=MIDDLE  ALT=\"1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >(11) + 64.7<BR>\n" );
document.write( "E(11)= 3.67 + 64.7<BR>\n" );
document.write( "E(11)= 68.4 yrs is the life expectancy in 2006\r<BR>\n" );
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