The table shows life expectancy at birth in the United States for selected years. (a) Does the

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The table shows life expectancy at birth in the United States for selected years.


(a) Does the table define a function?


(b) What are the domain and range?


(c) Call this function f. Give two ordered pairs that belong to f.


(d) Find ƒ(1980). What does this mean?


(e) If ƒ(x) = 76.8, what does x equal?


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Intermediate Algebra

ISBN: 9780134895987

13th Edition

Authors: Margaret Lial, John Hornsby, Terry McGinnis

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