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OpenStudy (anonymous):
find the -values (if any) at which is not continuous. Which of the discontinuities are removable?
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OpenStudy (anonymous):
\[f(x)=\frac{ x-3 }{ x ^{2}-9 }\]
OpenStudy (anonymous):
factor and cancel
OpenStudy (anonymous):
the discontinuities are the zeros of the denominator once you factor and cancel,the remaining zero is not removable the other one has been removed
OpenStudy (anonymous):
so the answer is 3?
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