Question

What is the domain and range of (-1, -1), (0, 0), (1, 1), (2, 2)?

Answer 1

In the set of ordered pairs {(-1, -1), (0, 0), (1, 1), (2, 2)}:

The Domain is the set of the first number in every pair (those are the x-coordinates): {-1, 0, 1, 2}.

The Range is the set of the second number of all the pairs (those are the y-coordinates): {-1, 0, 1, 2}.