Answer: The first or the second point (- 2, - 3) or (- 2, 1)
Step-by-step explanation:
Ok, a relation (x, y) is a function only if, for each value x in the domain, we have only one value y in the range such that:
f(x) = y.
Here we have the pairs:
(- 2, - 3), (- 2, 1), (- 4, 3), (0, 4), (1, 1), and (2, 3).
Here, for the value x = -2, we have two different values of y.
y = 1 and y = 3.
So this is not a function, then if we want that this relation becomes a function, we must remove the first or the second point.
