Final answer:
A mapping expresses a relation between two sets of values. The domain is {3, 4, 2, 1} and the range is {5, 6, 8, 4, 3}.
Step-by-step explanation:
A mapping expresses a relation between two sets of values. In this case, the given relation consists of pairs of numbers (x, y), such as (3, 5) and (4, 6). To express this relation as a mapping, we can write it like this:
{3 → 5, 4 → 6, 3 → 8, 2 → 4, 1 → 3}
The domain of a relation is the set of all the x-values, and the range is the set of all the y-values. In this mapping, the domain is {3, 4, 2, 1} and the range is {5, 6, 8, 4, 3}.