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Let R be a relation defined on set of natural numbers {(x, y): y=2x}. Is this relation can be called a function?

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in Mathematics - Class 11 by (789k points)
Let R be a relation defined on set of natural numbers {(x, y): y=2x}. Is this relation can be called a function?

(a) True

(b) False

I have been asked this question by my school principal while I was bunking the class.

The origin of the question is Functions in section Relations and Functions of Mathematics – Class 11

1 Answer

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Best answer
The correct choice is (a) True

Explanation: Since every natural number has one and only image so this relation can be called a function.

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