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Mathematics 9 Online
OpenStudy (anonymous):

State the domain of a rational function 6/4-x

OpenStudy (fifciol):

denominator must be different from zero

OpenStudy (anonymous):

would it be 4?

OpenStudy (fifciol):

yes, 4 is the only number that you cannot put in your function. What is the domain then?

OpenStudy (anonymous):

All real numbers except 4

OpenStudy (fifciol):

yes \[x \in (-\infty;4) \cup(4;\infty)\]

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