Dave is hanging dry well in a house with sqaure rooms. he completse on average 2\3 of an wall 1\2 of an hour

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.