Exponential function f is represented by the table. x-2-1012 f(x)-46-22-10-4-1 Function g is represented by the equation. Which statement correctly compares the two functions on the interval [-1, 2]? A. Both functions are increasing, but function g increases at a faster average rate. B. Both functions are increasing, but function f increases at a faster average rate. C. Only function f is increasing, and only function f is negative. D. Only function f is increasing, but both functions are negative.