Two functions are represented below: f(x) = 3x + 2 g(x) = 27-1 Which of the following is true? overequal intervals f(x) is exponential because it grows by equal differences oversequal intervals O g(x) is exponential because it grows by equal differences over equal intervals O f(x) is exponential because it grows by equal factors over equal intervals O g(x) is exponential because it grows by equal factors over equal intervals