Answer to Question #128183 in Discrete Mathematics for jaya

Question

Let A = {2,4,6} and B = {x,y,z}. State each of the following are relations from A into B.
v) R5 = {(x,2), (4,z), (2,z), (6,y)}

Answer 1

In R5 = {(x,2), (4,z), (2,z), (6,y)} the (x,2) is not a relation from A into B because x$\notin$ A.