In which set of points is y a function of x? A
{('1, 2), (0, 1), (1, 1), (1, 2)}
(В)
{("1, 2), (0, 1), (1, 2), (1, 1)}
), (,
©
{(°2, 1), (0, 1), (1, 0), (2, 1)}
D) {(-2,-2), (1, 1), (0, 1), (-1, -1)}

assuming you mean addition: addition and subtraction are reverse operations.

step-by-step explanation:

think about it deeply and passionately about this property

i am sorry

step-by-step explanation:

is their an equation anywhere i can take a   look at it and see if i am right.