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Question: Determine whether the relation is a function. Give the domain and range of it, if it is a function.



A ) It is a function; domain is 2 and range is 11
B ) It is a function; domain is 11, 13, 17, 19 and range is 2, 3, 5, 7
C ) It is not a function
D ) It is a function; domain is 2, 3, 5, 7 and range is 11, 13, 17, 19

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 2, 3, 5 and 7.

4 The range of the function is 11, 13, 17 and 19.



Hence the right answer is Option D

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