Question 195501: In 1995, the life expectancy of males in a certain country was 72.3 years. In 2001, it was 75.8 years. Let E represent the life expectancy in year t and let t represent the number of years since 1995.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! In 1995, the life expectancy of males in a certain country was 72.3 years. In 2001, it was 75.8 years. Let E represent the life expectancy in year t and let t represent the number of years since 1995.
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t = 0 represent 1995
Then t = 6 represents 2001.
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You have two points: (0,72.3) , (6,75.8)
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slope = (75.8-72.3)/(6-0) = 7/12
intercept = (0,72.3)
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Equation:
E(t) = (7/12)t + 72.3
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Cheers,
Stan H.
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