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A. Determine the domain and range of the given relations.
1. (1,5), (2, 10), (3, 15), (4, 20), (5, 25)
2. (32, -4), (18, -3), (8, -2), (8, 2), (18, 3), (32, 4)
3. (-5, -6), (-3,-4), (2, 1), (4, 3), (8, 7)
4. (24, -5), (15,-4), (24,5), (15, 4), (0, -1)
5. (-2, 12), (-1,3), (0,0), (1, 3), (2, 12), (3, 27), (-3, 27)​