If the function f(n) is defined as f(n) = nn + 1, for all...

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PS · Problem Solving

705-805

Functions

If the function f(n) is defined as f(n) =

\frac{n}{n + 1}

, for all integer values of n such that n ≠ –1, which of the following must be true?

I. f(x + 1) > f (x)
II. f(x) > 0
III. f(x) ≠ 0

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A

I only

B

II only

C

I and II only

D

I and III only

E

II and III only

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