Question

Determine the domain and range of the relation R defined by R = {(x, x + 5): x ∈ {0, 1, 2, 3, 4, 5}}. 

Answer 1

R = {(x, x + 5): x ∈ {0, 1, 2, 3, 4, 5}} 

∴ R = {(0, 5), (1, 6), (2, 7), (3, 8), (4, 9), (5, 10)} 

∴ Domain of R = {0, 1, 2, 3, 4, 5} Range of R = {5, 6, 7, 8, 9, 10}