From the given graph
The graph of g has an arrow with the left end it goes up, then
The absolute maximum of g is NONE
The graph of g has a minimum point (4, -4), then
The absolute minimum is -4
The graph of h has a maximum point (-4, 4), then
The absolute maximum is 4
The graph of h has a minimum point (-1, -4), then
The absolute minimum is -4