Answer: No
Step-by-step explanation: A function is a relation in which each x-term corresponds to exactly one y-term.
The easiest way to tell whether or not this relation is a function is to look at the x-coordinates of the given ordered pairs.
If any of the ordered pairs in this relation have the
same x-coordinate, then the relation is not a function.
Notice that two of the ordered pairs have the same x-coordinate.
They are (2,5) and (2,-5).
Since each x does not pair with exactly one y,
we know that this is not a function.