# Finding the DOMAIN of a function

The domain of a function is one of the most interesting topics in Algebra that many students are confused of. It is always partnered with the "range" of the function.

Domain, simply put, is the set of all permissible values of X while the range are the permissible values of Y.

The process is actually looking for EXCEPTIONS in the possible values of X; which means, the domain of a function is the SET of ALL REAL numbers EXCEPT for the non-permissible values. Domain notation may vary on how the topic is tought, but the logic is the same.

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