If `f: Z to Z` be given by `f(x)=x^(2)+ax+b`, Then,A. `a in Z and b in – InterviewSolution

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1.	If `f: Z to Z` be given by `f(x)=x^(2)+ax+b`, Then,A. `a in Z and b in Q-Z`B. `a,b, in Z`C. `b in Z and a in Q-Z`D. `a,b in Q-Z`
Answer» Correct Answer - B Since `f: Z to Z`. Therefore, f(x) assumes integral values for all `x in Z`. `Rightarrow f(0)` and (1) are integers `Rightarrow` b and a+b+1 are integers `Rightarrow` b and a integers i.e. ` b in Z`

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