What is the domain of f(x)=(4+x)/(x+5) ?

The domain of f(x)=(4+x)/(x+5) is x -5

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domain of f(x)=(4+x)/(x+5)

domain

f (x) = \frac{4 + x}{x + 5}

x < - 5 or x > - 5

Interval Notation

(- \infty, - 5) \cup (- 5, \infty)

Solution steps

Find undefined (singularity) points:

x = - 5

The function domain

x < - 5 or x > - 5

f (x) = e^{- x^{2}}

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

x^{2} - 8 x + 12

\frac{x ^{2} - 16}{x ^{2} + 169}

f (x) = x^{3} - 3 x^{2} - 45 x

What is the domain of f(x)=(4+x)/(x+5) ?
The domain of f(x)=(4+x)/(x+5) is x<-5\lor x>-5