What is the domain of f(x)=(2x)/(x+4) ?

The domain of f(x)=(2x)/(x+4) is x -4

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domain of f(x)=(2x)/(x+4)

domain

f (x) = \frac{2 x}{x + 4}

x < - 4 or x > - 4

Interval Notation

(- \infty, - 4) \cup (- 4, \infty)

Solution steps

Find undefined (singularity) points:

x = - 4

The function domain

x < - 4 or x > - 4

ln (x^{2} + 1)

f (x) = \frac{x + 5}{x ^{2} - 16}

f (x) = \frac{x ^{2} + 3 x - 10}{x ^{2} - 4}

f (x) = \frac{3 x + 2}{x ^{2} - 7 x}

f (x) = - \frac{1}{3} x - 6

What is the domain of f(x)=(2x)/(x+4) ?
The domain of f(x)=(2x)/(x+4) is x<-4\lor x>-4