Find the interval(s) where the function is increasing and the interval(s) where it is decreasing. (Enter your answer using interval notation. If an answer does not exist, enter DNE.) f ( x) = 3 4x3 - 2x2 - 8x - 4 Increasing: Decreasing : 5. [-/0.3 Points] DETAILS MY NOTES ASK YOUR TEACHER Find the interval(s) where the function is increasing and the interval(s) where it is decreasing. (Enter your answer using interval notation. If an answer does not exist, enter DNE.) 4t g(t) = - t 2 + 4 Increasing: Decreasing: 6. [-/0.3 Points] DETAILS MY NOTES ASK YOUR TEACHER Find the interval(s) where the function is increasing and the interval(s) where it is decreasing. (Enter your answer using interval notation. If an answer does not exist, enter DNE.) f(x) = x2/3 + 3 Increasing: Decreasing