Let A = {(x, y): x + 3y = 12, x ϵ N and y ϵ N}. (i) Write R in roster form. (ii) Find dom (R) and range (R).

Question

Philoid · Accepted Answer

Given: A = {(x, y): x + 3y = 12, x ϵ N and y ϵ N}

(i) So, R in Roster Form is,

R = {(3, 3), (6, 2), (9, 1)}

(ii) Dom(R) = {3, 6, 9}

Range(R) = {1, 2, 3}