What is the domain of f(x)= 1/(x+7) ?

The domain of f(x)= 1/(x+7) is x -7

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domain of f(x)= 1/(x+7)

domain

f (x) = \frac{1}{x + 7}

x < - 7 or x > - 7

Interval Notation

(- \infty, - 7) \cup (- 7, \infty)

Solution steps

Find undefined (singularity) points:

x = - 7

The function domain

x < - 7 or x > - 7

f (x) = x (x - 4)

x^{4} - 4 x^{3} + 2

f (x) = \frac{5 x}{9 - 5 x}

f (x) = \frac{9}{x ^{2}}

f (x) = - x^{4} - 7 x^{3} + 2 x - 6

What is the domain of f(x)= 1/(x+7) ?
The domain of f(x)= 1/(x+7) is x<-7\lor x>-7