fiNd the Matrix That Represents the Given Relation $\bar { R }$

Short Answer

find the matrix that represents the given relation. Use elements in the order given to determine rows and columns of the matrix.
- $\bar { R }$ , where $R$ is the relation on $\{ w , x , y , z \}$ such that
$$R = \{ ( w , w ) , ( w , x ) , ( x , w ) , ( x , x ) , ( x , z ) , ( y , y ) , ( z , y ) , ( z , z ) \}$$