Question

(02.01 lc) the domain of the following relation: r: {(-4, 3), (3, 6), (-2, 1), (3, 6)} is (1 point)
{1, 3, 6}
{-4, 3, -2, 3}
{-4, -2, 3}
no domain exists

Explanation:

Step1: Recall domain definition

The domain of a relation is the set of all first - elements of the ordered pairs.

Step2: Identify first - elements

For the relation R: {(-4, 3), (3, 6), (-2, 1), (3, 6)}, the first - elements are -4, 3, -2, 3.

Step3: Remove duplicates

The set of distinct first - elements is {-4, -2, 3}.

Answer:

{-4, -2, 3}