The frog population at a lake doubles every week. The population can be modeled by f (x) = 15 (2) x and f (6) = 960. What does the 2 represent?

The frog population at a lake doubles every week. The population can be modeled by f (x) = 15 (2) x and f (6) = 960. What does the 2 represent?

The population after six weeks

The starting population

The rate the population increases.

The number of weeks that have passed.