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Guided Activity: Let us now determine whether the following relations are functions or not. Write your answer in the blanks provided after each item. You may consult reference books or the internet.

1. {(2, -5), (5, -8), (4, 4), (-1, 6)}
2. {(6,4), (-6, 0), (6, -1). (-6, 9)}

what too answer?
plz help me​