Final answer:
The relation that represents a function is option B, (8,0), (0,4), (1,0), (2,12).
Step-by-step explanation:
The relation that represents a function is option B, (8,0), (0,4), (1,0), (2,12).
A function is a relation where each element in the domain is mapped to exactly one element in the range. In option B, each x-value (domain) corresponds to a unique y-value (range), satisfying the definition of a function. The other options contain duplicate x-values mapped to different y-values, which makes them not functions.