3. [-/1 Points] DETAILS TANAPCALC10 4.1.028.EP. MY NOTES PRACTICE ANOTHER Consider the following function. h (t) = 9 Find the derivative of the function. h ' ( t ) = Find all the values of t for which h '(t) = 0 or h '(t) is discontinuous. (Enter your answers as a comma-separated list. ) t = Find the interval(s) where the function is increasing and the interval(s) where it is decreasing. (Enter your answers using interval notation. If the answer cannot be expressed as an interval, enter EMPTY or O.) increasing decreasing