Kenya earned a total of $45.00 for babysitting a certain number of hours. This situation is modeled in the equation below where x equals the number of hours she spend babysitting

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.