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

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

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domain of (x-1)/(x+7)

domain

\frac{x - 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) = 2 x + y = 8

14

f (x) = 0.002 x^{3} + 7 x + 7813

\frac{1}{s ^{\frac{3}{2}}}

\frac{x + 1}{x}