Question

Let A = {1. 2. 3……… 141. Define a relation R from A to A by R = {(x, y): 3x – y = 0 x,y ε A}. Write ‘R’ in roaster form, write its Domain and Range.

Answer 1

y = 3 x R = {(1,3),(2,6), (3,9), (4, 12)}

Domain of R = {1, 2, 3, 4}

Range of R = {3, 6, 9, 12)

Codomain of R = {1, 2, 3, ….. 14}