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OpenStudy (anonymous):
find the domain of each rational function f(x)=3x-8/4x+20
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OpenStudy (anonymous):
|dw:1316845956778:dw|
OpenStudy (anonymous):
exactly... when does this function become undefinable
OpenStudy (anonymous):
when the denominator is 0 so x cannot equal 5
OpenStudy (anonymous):
\[ x \neq -5\]
OpenStudy (anonymous):
\[(-\infty,-5),(-5,\infty)\]
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OpenStudy (anonymous):
i couldn't find a union
OpenStudy (anonymous):
|dw:1316846182119:dw|
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