Question

let A={1,2,3,4,5,6},B={0,1,2,3,4,5,6,7,8,9}. Define a relation R from A to B by R={(x,y):y =2x - 1, x ∈ A, y ∈ B}. write down the domain, co-domain and range of R

Answer 1

Answer:

A={1,2,3,4,5,6}

R={(x,y):y=x+1}

x=1,y=2

x=2,y=3

x=3,y=4

x=4,y=5

x=5,y=6

R={(1,2),(2,3),(3,4),(4,5),(5,6)}

domain ={1,2,3,4,5}

codomain =A

range = {2,3,4,5,6}