Problem 555

Explain why there are restrictions on the domain for the function  f(x) = \frac{1}{x}.




The domain of a function is the set of values for which it is defined. For the given function x = 0 will cause the function to be undefined, since 1 divided by 0 is undefined. Therefore, the domain is the set of real numbers, except x = 0 or x ≠ 0..


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