Q. 39

Which one the following relations on A = {1, 2, 3} is a function?f = {(1, 3), (2, 3), (3, 2)}, g = {(1, 2), (1, 3), (3, 1)}.

Given:-

(i) A = {1, 2, 3}

(ii)f = {(1, 3), (2, 3), (3, 2)}

(iii)g = {(1, 2), (1, 3), (3, 1)}.

In case of set A and f

Every element in A has a unique image in f

So, f is a function

In case of set A and g

Only one element has image in g

So, g is not a function

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