Determine the intervals over which the function is increasing decreasing or constant x 3 3 2x 1 x 0 0 x 2 x 2 11 f x x 1 1 0 4 2 4 2 y 1 0 x 2 4 12 f x 13 f x 2x 1 xs 1 x 2 x 1 y