The domain of the function $h$ graphed below is all real numbers, and all of its extreme values occur when $-3. Use the graph to answer the following questions.

Does $h$ hava a global maximum? If so, enter the value of its global maximum. If there is no global maximum, enter DNE.
Global maximum value:

Does $h$ hava a global minimum? If so, enter the value of its global minimum. If there is no global minimum, enter DNE.
Global maximum value: