Let A={1,2,3,4}and B={x,y,z) let R be a relation from A intoB defined

This question was asked in Ex 2.2, 3

Let A={1,2,3,4}and B={x,y,z) let R be a relation from A intoB defined by R= {(1,x)(1,z),(3,x) ( 4,y ) } find the domain and range of R