RE: Math Urgent

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I posted this earlier but I think I phrased it in a confusing way

Find g(x) + g(x) if g(x) = {(-4,5), (-2,-3), (0,5), (1,3), (3,-1), (5,5)} and
g(x) = {(-3,-2), (-2,6), (-1,0), (1,0), (2,-6), (3,5), (4,0), (6,-2)}.

I don't need the whole thing done i'm just very confused on how to find composite functions with sets of points!

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