Let f : A → R, where A = R\(0) is such that \({\rm{f}}\left( {\rm{x}} \right) = \frac{{{\rm{x}} + \left| {\rm{x}} \right|}}{{\rm{x}}}\). On which one of the following sets is f(x) continuous?

Let f : A → R, where A = R\(0) is such that \({\rm{f}}\left( {\rm{x}

1.	Let f : A → R, where A = R\(0) is such that \({\rm{f}}\left( {\rm{x}} \right) = \frac{{{\rm{x}} + \left\| {\rm{x}} \right\|}}{{\rm{x}}}\). On which one of the following sets is f(x) continuous?
A.	A
B.	B = {x ∈ R : x ≥ 0}
C.	C = {x ∈ R : x ≤ 0}
D.	D = R
Answer» B. B = {x ∈ R : x ≥ 0}

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Let f : A → R, where A = R\(0) is such that \({\rm{f}}\left( {\rm{x}} \right) = \frac{{{\rm{x}} + \left| {\rm{x}} \right|}}{{\rm{x}}}\). On which one of the following sets is f(x) continuous?

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