(-4, 6), (0, 2), (4, -2)
Those are coordinates. The first number is the x-coordinate and the second one is the y-coordinate.
So for instance in this coordinate (-4, 6), the x is -4 and y is 6.
x + y = 2
-4 + 6 = 2
2 = 2
true
Try that for the other coordinates as well and you will find out (-4,6), (0,2), (4,-2) is the correct answer.
