Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down. O Local minimum at x = 3; local maximum at x = -3 ; concave up on (0, co); concave down on (-09, 0) O Local minimum at x = 3; local maximum at x = -3 ; concave up on (0, -3) and (3, co); concave down on (-3, 3) O Local minimum at x = 3; local maximum at x = -3 ; concave down on (0, co); concave up on (-oo, 0) O Local maximum at x = 3; local minimum at x = -3 ; concave up on (0, -3) and (3, co); concave down on (-3, 3)