Question 147390: In 1992, the life expectancy of males in a certain country was 66.4 years. In 1996, 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 stanbon(75887)   (Show Source):
You can put this solution on YOUR website! In 1992, the life expectancy of males in a certain country was 66.4 years. In 1996, it was 69.9 years. Let E represent the life expectancy in year t and let t represent the number of years since 1992.
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You have two points: (0,66.4) and (4,69.9)
slope = (3.5)/(4) = 7/8
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intercept = (0,66.4)
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EQUATION:
E(t) = (7/8)t + 66.4
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Cheers,
Stan H.
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