What is the domain of f(x)= 1/(x+19) ?

The domain of f(x)= 1/(x+19) is x -19

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domain of f(x)= 1/(x+19)

domain

f (x) = \frac{1}{x + 19}

x < - 19 or x > - 19

Interval Notation

(- \infty, - 19) \cup (- 19, \infty)

Solution steps

Find undefined (singularity) points:

x = - 19

The function domain

x < - 19 or x > - 19

\frac{x}{x ^{2} + 3}

(- 4, - 5), (2, 1)

f (x) = \frac{x + 1}{x}

f (x) = - x - 1

f (x) = (x + 10)^{7}

What is the domain of f(x)= 1/(x+19) ?
The domain of f(x)= 1/(x+19) is x<-19\lor x>-19