SOLUTION: In 1991, the life expectancy of males in a certain country was 61.5 years. In 1995, it was 64.4 years. Let E represent the life expectancy in year t and let t represent the numbe

Question 554238: In 1991, the life expectancy of males in a certain country was 61.5 years. In 1995, it was 64.4 years. Let E represent the life expectancy in year t and let t represent the number of years since 1991. The linear function E(t) that fits the data is?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
A linear function means it is a straight line
Plot on the horizontal axis
Plot on the vertical axis
You are given the points:
( 0,61.5 ) and
( 4,64.4 )
--------
Use the point-slope formula:

Multiply both sides by

check answer:

and

OK
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