X um (a) All the local maximum and minimum values of the function and the value of x at which each occurs. local maximum (x, y) = (smaller x-value) local maximum (x, y) = (larger x-value) local minimum (x, y) = (smaller x-value) local minimum (x, y) = (larger x-value) (b) The intervals on which the function is increasing and on which the function is decreasing. (Enter your answers using interval notation.) increasing decreasing