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# Domain

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Let f(x) = (3x + 7)/(x + 7).  Let Find the domain of f. Give your answer as an interval.

Apr 6, 2021

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Looking at the function, you can see that $x$ can be all real numbers except for $-7$, as that would cause division by $0$.

So the domain would be $\boxed{(-\infty, -7)U(-7, \infty)}$

Apr 6, 2021

#1
+485
+1
Looking at the function, you can see that $x$ can be all real numbers except for $-7$, as that would cause division by $0$.
So the domain would be $\boxed{(-\infty, -7)U(-7, \infty)}$