The graph of f is given below Identify the intervals on which f is increasing or decreasing Identify the critical values and the location z values of any relative extrema of f Use interval notation to report interval solutions If multiple relative maximums or relative minimums exist enter those solutions using a comma separated list If a solution does not exist enter DNE 5 75 3 2 4 6 3 45 2 3 1 15 1 15 2 3 3 45 5 75 f is increasing on f is decreasing on The critical values of f are f has a relative maximum at x 2 3 9