Question

Given A = {(1, 3)(-1, 5)(6, 4)}, B = {(2, 0)(4, 6)(-4, 5)(0, 0)} and C = {(1, 1)(0, 2)(0, 3)(0, 4)(-3, 5)}, answer the following multiple choice question: From the list of sets A, B, and C, state the domain of set B.

Answer 1

For the given sets

A = {(1, 3)(-1, 5)(6, 4)}, B = {(2, 0)(4, 6)(-4, 5)(0, 0)} and C = {(1, 1)(0, 2)(0, 3)(0, 4)(-3, 5)}

From the list of sets A, B, and C, we have to find the domain of set B.

Consider the set B =  {(2, 0)(4, 6)(-4, 5)(0, 0)}

The domain is the set of all first elements of ordered pairs (x-coordinates).

In the given set, the first elements of all the ordered pairs are 2,4, -4 and 0.

Therefore, the domain of the set B is 2,4, -4 and 0.