Final answer:
The relation H={(5,8), (0, -7), (7, 7)} is a function because each x-value is associated with exactly one y-value, fulfilling the definition of a function.
Step-by-step explanation:
The relation H defined as H={(5,8), (0, -7), (7, 7)} is being considered to determine if it is a function. For a relation to be a function, each x-value must map to exactly one y-value. In relation H, there are distinct x-values for each y-value, meaning no x-value is paired with more than one y-value. Therefore, the correct statement regarding the relation H is B) H is a function because it has distinct x-values for each y-value.