Answer
a) $(0,0,0), (3,0,0), (0,5,0), (3,5,0), (0,0,4), (3,0,4), (0,5,4), (3,5,4)$
b) $(0,1,0), (0,6,0), (4,6,0), (4,1,0), (0,1,-2), (0,6,-2), (4,6,-2), (4,1,-2)$
Work Step by Step
a) We can see from the graph that the coordinates of the eight corners are: $(0,0,0), (3,0,0), (0,5,0), (3,5,0), (0,0,4), (3,0,4), (0,5,4), (3,5,4)$
b) We can see from the graph that the coordinates of the eight corners are: $(0,1,0), (0,6,0), (4,6,0), (4,1,0), (0,1,-2), (0,6,-2), (4,6,-2), (4,1,-2)$