Question

The ordered pairs shown below represent a relation. (3, 2) (5, 1) (6, 0) (4, 4) (5,2) Which number is not in the domain of the relation?

a2
b3
c4
d5​

Answer 1

d) 5

Explanation:

we can observe that the x-value 5 appears twice in the relation. However, in a function or a relation, each x-value should only have one corresponding y-value. Therefore, the repetition of (5, 1) and (5, 2) indicates an inconsistency or ambiguity in the relation. As a result, 5 is not a valid x-value in the domain.