Question

Determine the domain and range of the following relation. 

R = {(a, b) / a ∈ N, a < 5, b = 4}

Answer 1

R = {(a, b) / a ∈ N, a < 5, b = 4}

∴ Domain (R) = {a / a ∈ N, a < 5} = {1, 2, 3, 4}

Range (R) = {b / b = 4} = {4}