What is the domain of (2x+18)/(x+1) ?

The domain of (2x+18)/(x+1) is x -1

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domain of (2x+18)/(x+1)

domain

\frac{2 x + 18}{x + 1}

x < - 1 or x > - 1

Interval Notation

(- \infty, - 1) \cup (- 1, \infty)

Solution steps

Find undefined (singularity) points:

x = - 1

The function domain

x < - 1 or x > - 1

f (x) = \frac{x + 6}{x ^{2} + 6 x - 27}

f (x) = - x + 1 + ln (x)

g (x) = 5^{x}

f (x) = \frac{1}{x - 2} g (x) = \frac{8}{x + 3}

f (x) = \frac{2 x ^{2} + x - 1}{x ^{2} + x - 2}

What is the domain of (2x+18)/(x+1) ?
The domain of (2x+18)/(x+1) is x<-1\lor x>-1