A country's population in 1991 was 103 million. In 1999 it was 108 million. Estimate
the population in 2013 using the exponential
growth formula. Round your answer to the
nearest million.

Describe the end behavior of the function below. f(x)=(2/3)^x-2 a. as x increases, f(x) approaches infinity. b. as x decreases, f(x) approaches 2. c. as x increases, f(x) approaches -2. d. as x decreases, f(x) approaches negative infinity.