Answer:
Choice D is correct. Every x-value corresponds to exactly one y-value.
Step-by-step explanation:
We have given the set of ordered pairs :
{ (-5,-5) ,(-1,-2),(0,-2),(3,7),(8,9) }
We have to explain that is this set represent a function or not?
Function is a rule that assigns each input exactly one output.
In the set, each value of x has unique value of y.
From the definition of function,this set represent a function because each input has a single output.
Every x-value corresponds to exactly one y-value.