ute whether or not the following relation a. {(2,2), (2,3), ((4,2))} b. {(1,3), (2,3), (3,2), (5,2)} c. {(-2,4),(–1,1), (0, 0), (1, 1), (2, 2) d. {(x,y)| y = vx} e. {(x,y)|x² – y² = 9}

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