Identify function,constant function,polynomial function

1.	Identify function,constant function,polynomial function
Answer» Identity function:A function f:R to R defined by f(x) = x , where x belongs to R, is identity function.Domain and range = RConstant function:A function f:R to R defined by f(x) = C where x belongs to R and C is constant, is constant function.Domain = RRange = C

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