x ≤ -1
y ≤ 3x+2
y ≥ -3x+10
To do this problem, you need to separately graph each line:
x = -1
y = 3x+2
y = -3x+10
Then figure out which side of the line the inequality satisfies. because the inequalities include the "equal to", in all cases the line itself is part of the solution space. Click on the link below to see a graph of the solution.
http://www.wyzant.com/resources/files/287071/graph_system_of_inequalities
The "figure" created by the blue solution regions is the white area in the middle. You can figure out what shape it is.