Status: Waiting for your answers. Given: f(x) = 3x + 1 Calculate:The inverse of f(x), denoted as f -1 (x). Choose the correct response below. a)f -1 (x) = (1/3)x - 1/3 b)f -1 (x) = (1/1)x - 3/1 c)f -1 (x) = 1x - 3 d)f -1 (x) = (1/3)x + 1