Life Expectancy The figure gives the number of years the average man is estimated to live...

Life Expectancy The figure gives the number of years the average man is estimated to live beyond age 65 during selected years between 1950 and 2030. Let x represent the year and let y represent the expected number of years a man will live past age 65. Write y = g(x) and answer the following questions:

a. What is g(2020) and what does it mean?

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b. What was the life expectancy for the average man in 1950?

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c. Write a function expression that indicates that the average man in 1990 has a life expectancy of 80 years.