(1) The graph of a derivative f'(x) is shown. On the graph, mark the x-values that are critical point of f. At which critical points does f have local maxima, local minima, or neither? (2) Find the global maximum and global minimum values of f(x) 0 x 3. = x3 3x 1 on the interval (3) Suppose a and b are positive numbers, find the global maximum value of 0 x 1 f(x) = x(1 - x),