A company's customer base, in thousands, is modeled by the function , where is the number of years since the end of 2010. What does the -intercept of the graph of represent in this context?
The initial rate of change of customers per year.
The initial number of customers (in thousands) at .
The long-run number of customers as increases without bound.
The number of years after 2010 when the customer base is 5,000.
