Let R = {(a, b) : a, b ∈ N and b = a + 5, a

Question

Let R = {(a, b) : a, b ∈ N and b = a + 5, a < 4}. Find the domain and range of R.

Philoid · Accepted Answer

dom (R) = {1, 2, 3} and range (R) = {6, 7, 8}