Problema Solution
in 1992 the life expectancy of males in a certain country was 72.2 years. in 1997, it was 74.7 years. let e represent the life expectancy in year t and let t represent the number of years since 1992. what is the linear function the fits the data E(t)=blank+blank(round to nearset tenth) and use the function to predict the life expectancy of males in 2003 E(11)=
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Solution:
E(t) - 72.2 = ((74.7-72.2)/(5-0))(t-0)
E(t) = 0.5t + 72.2
E(11) = 0.5(11) + 72.2
E(11) = 77.7