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Set-Theoretic Concepts: Function Line Tests

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Explanations 1

A function satisfies that for all x in the domain of f, f(x)=yf(x)=yf(x)=y. There is only one unique number y, i.e. we cannot have f(3)=2,4f(3)=2, 4f(3)=2,4 at the same time. To…
By Vincent Huang