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Question: Determine whether the relation is a function or not. Give the domain and range of it, if it is a function.



A ) It is a function; domain is {1, 3, 5} and range is {6, 2, 10}.
B ) It is a function; domain is {1} and range is {2}.
C ) It is a function; domain is {6, 2, 10} and range is {1, 3, 5}.
D ) It is not a function.

Steps to derive

1 In the relation, for each input there is exactly one output.

2 The relation is a function.

3 The domain of the function is {1, 3, 5}.

4 The range of the function is {6, 2, 10}.



Hence the right answer is Option A

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