The domain of a function is the set of input values, x x , for which a function is defined.



The domain of a function is the set of input values, x x , for which a function is defined. . We also know we can’t take the square root of a negative number. . are not in the domain, you must find the values where the function is not defined. . value has one and only one range value as a result, but not necessarily vice versa.




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