<PRE><B>Question 156550</B>
In 1994, the life expectancy of males in a certain country was 69.6 years.
In 2001, it was 73.3 years.
Let E represent the life expectancy in year t and let t represent the number of years since 1994.
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You have two points(0,69.6) (7.73.3)
slope = (73.3-69.6)/(7-0) = 0.5286
intercep = 69.6 
The linear function E(t)that fits the data is,
E(t)= 0.5296t + 69.6
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(Round to the nearest tenth.)
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Cheers,
Stan H.
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