(Modeling) U.S. Radio Stations In 2007 there were 13,837 radio stations, and in 2012 there were 15,082 radio stations.
(a) Find a linear function ƒ(x) = ax + b that gives the number of radio stations x years after 2007.
(b) Interpret the slope of the graph of y = ƒ(x).
(c) Estimate the number of radio stations in 2014.
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