Problema Solution
In 1992, the life expectancy of males in a certain country was 69.8 years. In 1998, it was 73.5 years. Let E represent the life expectancy in year t and let t represent the number of years since 1992. The linear function Et that fits the data is E(t) =
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Slope = (73.5-69.8)/6 = 0.617
The linear function Et that fits the data is E(t) = 0.617t + 69.8