6. Question Details A graphing calculator is recommended. A function is given. f ( x) = x3 - x (a) Find the local maximum and minimum values of the function and the value of x at which each occurs. State each answer rounded to two decimal places. local maximum (x, y) = ( local minimum ( x , y ) = 1 (b) Find the intervals on which the function is increasing and on which the function is decreasing. State each answer rounded to two decimal places. (Enter your answers using interval notation. ) increasing decreasing