In Example 1, we used two data points and an exponential function to model the population of

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In Example 1, we used two data points and an exponential function to model the population of the United States from 1970 through 2010. The data are shown again in the table. Use all five data points to solve Exercises 66–70.image


Data from example 1


The graph in Figure 4.22 shows the U.S. population, in millions, for five selected years from 1970 through 2010. In 1970, the U.S. population was 203.3 million. By 2010, it had grown to 308.7 million.


Figure 4.22image


Use your graphing utility’s power regression option to obtain a model of the form y = axb that fits the data. How well does the correlation coefficient, r, indicate that the model fits the data?

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College Algebra

ISBN: 9780134453262

7th Edition

Authors: Robert F Blitzer

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