Use the graph to state the solution for the system.
x – y = 4 (line a)
x + y = 4 (line b)
 A.
(0, 4)
 B.
(4, 0)
 C.
(–4, 0)
 D.
(0, –4)
                                             
                                          
                                          
                                        
											 
			                   
					                  