Concept explainers
Modeling DataThe amounts of the federal debt an (in trillions of dollars) of the United Stales from 2000 through 2011 are given below as ordered pairs of the form (n, an), where n represents the year, with n = 0 corresponding to 2000. (Source: U.S. Office of Management and Budget)
(0, 5.6), (1, 5.8), (2, 6.2), (3, 6.8), (4, 7.4), (5,7.9), (6, 8.5), (7, 9.0), (8, 10.0), (9, 11.9), (10, 13.5), (11, 14.8)
(a) Use the regression capabilities of a graphing utility to find a model of the form
an= bn2+ cn +d, n =0,1,. . ., 11
for the data. Use the graphing utility to plot the points and graph the model.
(b) Use the model to predict the amount of the federal debt in the year 2020.
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Chapter 9 Solutions
Calculus: Early Transcendental Functions (MindTap Course List)
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