Final answer:
No, The relation is not a function because the input 2 maps to two different outputs, violating the definition of a function.
Step-by-step explanation:
A relation is a set of ordered pairs in which each input corresponds to exactly one output.
To determine if the given relation is a function, we need to check if each input has a unique output.
In this relation, the input value of 2 is associated with two different output values, -4 and 4.
Therefore, the given relation is not a function.