Approximate the critical numbers of the function shown in the graph. Determine whether the function has a relative maximum, a relative minimum, an absolute maximum, an absolute minimum, or none of these at each critical number on the interval shown. (Enter your answers as a comma-separated list.) M X 8 Approximate the critical numbers. X = List the critical numbers at which each phenomenon occurs. (If an answer does not exist, enter DNE.) relative maxima relative minima absolute maxima X absolute minima X