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In 1991, the life expectancy of males was 72.5, in 1996 it was 74.7 years. Let E represent the life expectancy in year t and let t represent the number of years since 1991.
E(t)=_____t + _____ Round to nearest tenth

Use the function to predict the life expectancy in 2005
E(14)=_____

Round to nearest tenth.

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Solution Summary

The solution shows hot to predict the life expectancy in 2005 by solving the linear equation.

Solution Preview

Let the function be E(t) = at + b (1)

Now we have two sets of data to solve for the unknown a and b coefficients.
At year 1991, t = 0, and ...

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