How to tell if a function is even odd or neither?

1.	How to tell if a function is even odd or neither?
Answer» For an even function, f(-x) = f(x), for all x, for an odd function f(-x) = -f(x), for all x. Iff(x) ≠ f(−x) and−f(x) ≠ f(−x) for some values of x, then f is neither even nor odd. A functionis defined as the change in the output value with respect to input where the output variableis dependent upon the input variable.

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