Examine the following relation and state whether it is a function or not,giving reasons:
$R = \{(1, 2), (2, 3), (3, 4), (4, 5), (5, 6), (6, 7)\}$
$R = \{(1, 2), (2, 3), (3, 4), (4, 5), (5, 6), (6, 7)\}$
- AIt is a function because every element in the domain has a unique image in the codomain.
- BIt is not a function because the domain elements are not distinct.
- CIt is a function because the range elements are distinct.
- DIt is not a function because the relation is not symmetric.
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