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number.
1. What is the range of the relation {(1, 2),(2, 3),(3,4),(4,5)}?
A. { 1,4}
B. {1, 2, 3, 4) C. {2, 3, 4,5)
D.{1,2,3,4,5)
2. For the function {(1,6), (2,10), (3,14), (4,18)}, what is the domain?
A. { 1, 6)
B. {1,2,3,4} C.{1,2, 14,18} D.{6, 10, 14,18}