Final answer:
Upon reviewing the set of pairs provided, it is clear that each input corresponds to one and only one output, which means the relation is indeed a function.
Step-by-step explanation:
To determine whether a given relation is a function, we need to examine if each input (or x-value) is associated with exactly one output (or y-value). In the given set of pairs (0,4), (1, 4), (2, 5), (3, 6), (4, 6), we can see that the x-values are unique and no x-value is repeated with different y-values. This means that for every input, there is only one output, satisfying the definition of a function.
Therefore, the relation given by the points is a function, and the correct answer to the question is:
A. Yes, it is a function