Answer:
B
Step-by-step explanation:
When given an ordered pair in defining a function, we have to note that each x value pairs up with a unique y value. If there is more than 1 y-value for any x-value, this would NOT be a function.
If there is ordered pair as shown below:
(2, 7), (4, 5), (-2, 3), (2, 7)
We can think that there are two 2's and this isn't a function, but wait!
2 pairs with 7 and the next one, 2 also pairs with 7, so it is a function, eventhough it is written twice. They are the same.
Now, looking at the ordered pair given in this problem:
{(-8, 2), (-8, 8), (1, 4), (6, -4), (10, 2)}
-8 is paired with "2"
as well
-8 is paired with "8"
So, there are "2" y-values for a single value of x, -8
So, it is not a function
Correct answer is B
