Answer
$$[(4,-2),(1,-1),(1,1),(4,2)]$$ This set of points does not represent a function.
Work Step by Step
$[(-2,4),(-1,1),(1,1),(2,4)]$, therefore, becomes: $$[(4,-2),(1,-1),(1,1),(4,2)]$$ Since the new set involves points where one value of $x$ has more than one value of $y$, we can say that this relation is not a function by definition.
