Which of the following is the identity function-y - -x-y - x-y - x-2-y-1-

The correct option is B y = x Identity function is the name of the function f(x) = x ...

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Identity Function

Which of the ...

Question

Which of the following is the identity function?

$y = 1$

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$y = x^{2}$

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$y = | x |$

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$y = x$

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