Population as a Function of Age The function
P(a) = 0.014a2 − 5.073a + 327.287
represents the population P (in millions) of Americans that are a years of age or older in 2012.
(a) Identify the dependent and independent variables.
(b) Evaluate P(20). Provide a verbal explanation of the meaning of P(20).
(c) Evaluate P(0). Provide a verbal explanation of the meaning of P(0).
Source U.S. Census Bureau
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