Question: 2)Is this relation a function or not? a) {(1,-2),(-2,0),(-1,2),(1,3) } b) {(1,1), (2,2),(3,5),(4,10),(5,15) } c) {(-2,-1), (0,3), (5,4),(-2,3)} d) {(-1,7),(0,-3),(1,10),(0,7)}


2)Is this relation a function or not? a) {(1,-2),(-2,0),(-1,2),(1,3) } b) {(1,1), (2,2),(3,5),(4,10),(5,15) } c) {(-2,-1), (0,3), (5,4),(-2,3)} d) {(-1,7),(0,-3),(1,10),(0,7)}
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