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# help!

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Let $$f(x) = \frac{3x - 7}{x + 1}.$$ Find the domain of $$f$$. Give your answer as an interval.

Thank you so much!

Mar 1, 2020

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The domain is the set of all real numbers that are allowable replacements for x.

The only number not allowed is -1, because this number makes the denominator zero.

So the domain is:  (-infinity, -1)  union  (-1, infinity).

Mar 1, 2020