Question: Determine whether f is a function or not. Justify your answer. 1. f :ZR,f(x)=x^2. 2.f :RZ,f(x)=x.

Determine whether f is a function or not. Justify your answer.

1. f :ZR,f(x)=x^2.

2.f :RZ,f(x)=x.

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