Based on data about U.S. households, the following logarithmic model was determined:
f (t) = 4645.3 ln(t) - 35240, where t = year and f (t) = number of U.S. households with cable television, in millions of households.
(Note that "ln" refers to the natural log function) (explanation optional) Using the model,
(a) How many U.S. households had cable television in the year 1995, to the nearest million?
(b) How many U.S. households had cable television in the year 2005, to the nearest million?