Which of the following items has the highest unit price? 3 for $2.19 4 for $3.00 5 for $3.50 $0.72 each

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.