SOLUTION: In 1992 the life expectancy of males in a certain country was 66.2 years in 1997 it was 69.9 years let E represent the life expectancy in year t and let t represent the number of y

Question 263432: In 1992 the life expectancy of males in a certain country was 66.2 years in 1997 it was 69.9 years let E represent the life expectancy in year t and let t represent the number of years since 1992?
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
I think you are looking for a linear equation to model this data. We have two coordinates here
(0, 66.2) and (5, 69.9). Let 1992 = 0 and 1997 = 5.
step 1 - find the slope using

to get

which is

---
step 2 - using y = mx + b, and a coordinate, we get

so,

---
we have our answer as

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