If f-R- R is defined by fx-2x-3- x - R- which of the following is - are correct-

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Definition of Function

If f:R→ R i...

Question

If $f : R \to R$ is defined by $f (x) = 2 x - 3 \forall x ϵ R$ , which of the following is / are correct?

f

is a function

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f

is an injection

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f

is surjection

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f

is not onto

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f

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