Question

Let A = {2,4,6} and B = {x,y,z}. State each of the following are relations from A into B.
(iii) R3 = {(2,x), (4,y), (6,z)}

Answer 1

These are relations from A into B because each of (2,x), (4,y), (6,z) is a subset of the Cartesian product $A\times B$.