Let R = {(a, b) : b = |a – 1|, a ∈ Z and la|

Question

Let R = {(a, b) : b = |a – 1|, a ∈ Z and la| < 3}. Find the domain and range of R.

Philoid · Accepted Answer

dom (R) = {-2, -1, 0, 1, 2} and range (R) = {3, 2, 1, 0}