Concept explainers
E-Book Revenue The table shows the annual revenues (in billions of dollars) of e-books in the United States from 2009 through 2013. (Source: Statista)
Year | 2009 | 2010 | 2011 | 2012 | 2013 |
Revenue | 0.82 | 1.52 | 2.31 | 3.35 | 4.52 |
A mathematical model for the data is given by
(a) Use a graph and a table to compare the data with the model.
(b) Use the model to predict the revenue in 2018.
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