SOLUTION: In 1992 the life expectancy of males in a certein country was 64.1 years. In 1996, it was 66.5 years. let E represent the life expectancy in year t and let t represent the number o

Question 473955: In 1992 the life expectancy of males in a certein country was 64.1 years. In 1996, it was 66.5 years. let E represent the life expectancy in year t and let t represent the number of years sence 1992.
The linear function E(t) that fits the data is?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The linear function looks like

where = slope
and = y-intercept
---------------------
For this problem:
Replace with
Replace with
-----------------
Now you have

Note that when ,
and
------------------
Now you have

Now you have to find , the slope of the line
is the change in divided by
the change in

Now you have

------------------
check answer:

OK

RELATED QUESTIONS
In 1992, the life expectancy of males in a certain country was 66.4 years. In 1996, it... (answered by stanbon)

in 1992, life expectancy of males in a certain country was 65.1 years. in 1996, it was... (answered by josmiceli)

in 1992 the life expectancy of males in a certain country was 72.1 years. In 1997 it was... (answered by ankor@dixie-net.com)

In 1992 the life expectancy of males in a certain country was 66.2 years in 1997 it was... (answered by drk)

Please help....I am so lost In 1992, the life expectancy of males in a certain country (answered by ankor@dixie-net.com)

please help I am so lost In 1992, the life expectancy of males in a certain country... (answered by ankor@dixie-net.com)

In 1992, the life expectancy of males in a certain country was 71.6 years. In 1998, it... (answered by jim_thompson5910)

In 1990, the life expectancy of males in a certain country was 62.1 years,1996 it was... (answered by stanbon)

in 1992 the life expectancy of males was 70.6 years. in 1999 it was 73.3 years. let e... (answered by nyc_function)