As a person ages, the number of additional years he or she can expect to live declines. U.S. government statisticians use population data to provide estimates of how much longer a person will live based on gender and current age. A new-born boy (0 years old) in 2001 was expected to live 74.4 years, while a man 30 years old in 2001 was expected to live an additional 46.2 years.
a. Find a linear function model L(a) = … that gives the years of life expectancy as a function of a, a male’s age in 2001.
b. Use your model to predict how much longer a male is expected to live if he is 18 in 2001.
c. In 2001 how old is a male who is expected to live 32.1 additional years?
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