In 2009, there were 1570 bears in a wildlife refuge. In 2014, the population had increased to approximately 3907 bears.

a. If the trend continues and the bear population is increasing exponentially, what model could
represent the situation? Let B represents the number of bears and x represent the number of
years since 2009. (Round off your answers to the nearest tenth if necessary.)

B =

The growth factor is

The rate of increase is
% per year.

How many bears will there be in 2021? (Round off to the nearest whole number.)

bears