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determine whether or not each relation is a function. write a function or not a function on the space provided.
___1. {(3, 3), (5, 6), (9, 6)}
___2. {(2,5),(2,6),(4,5),(4,6)}
___3. {(-3,-2),(-2,-1),(-1,0),(0,1)}
___4. {(4,1),(4,2),(4,3)}
___5. {(-8,-6),(6,8),(7,7),(7,8)}

need ko po asap thankss!!​