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Question
Is the given relation a function? Give reasons for your answer.
h = {(4, 6), (3, 9), (– 11, 6), (3, 11)}
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Solution
h = {(4, 6), (3, 9), (– 11, 6), (3, 11)}
Therefore, element 3 has two images, namely, 9 and 11.
A relation is said to be function if every element of one set has one and only one image in other set.
Hence, h is not a function.
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