Solve each problem using a system of two equations in two unknowns.
Two Models One demographer believes that the population growth of a certain country is best modeled by the function P(t) = 20e0. 07t, while a second demographer believes that the population growth of that same country is best modeled by the function P(t) = 20 + 2t. In each case t is the number of years from the present and P(t) is given in millions of people. For what values of t do these two models give the same population? In how many years is the population predicted by the exponential model twice as large as the population predicted by the linear model?
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Chapter 5 Solutions
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