Life Expectancya. Find a linear function y = g(x) that models the data shown in the figure...

Life Expectancy

a. Find a linear function y = g(x) that models the data shown in the figure, with x equal to the number of years after 1950 and y equal to the number of years the average 65-year-old man is estimated to live beyond age 65.

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b. Graph the data and the model on the same set of axes.

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c. Use the model to estimate g(130) and explain what it means.

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d. In what year would the average 65-year-old man expect to live to age 90?

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e. Determine the time period for which the average man could expect to live less than 81 years.