iPhone Revenues The percentage of smartphone revenues that were due to iPhones is shown in the table.
Year | 2008 | 2009 | 2010 | 2011 |
Percentag e | 3 | 10 | 16 | 24 |
Source: Business Insider.
(a) Find a linear function f that models these data. Does f model these data exactly or approximately?
(b) Use f to estimate this percentage in 2007.
(c) Did your answer use interpolation or extrapolation? Comment on your result.
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