What is the domain of f(x)=(x-1)/(x+3) ?

The domain of f(x)=(x-1)/(x+3) is x -3

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domain of f(x)=(x-1)/(x+3)

domain

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

x < - 3 or x > - 3

Interval Notation

(- \infty, - 3) \cup (- 3, \infty)

Solution steps

Find undefined (singularity) points:

x = - 3

The function domain

x < - 3 or x > - 3

(1, - 9), (- 5, 0)

f (x) = 6 x^{2} - 24 x - 30

f (x) = \frac{2 x}{x ^{2} + 1}

3 x + y = 0

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

What is the domain of f(x)=(x-1)/(x+3) ?
The domain of f(x)=(x-1)/(x+3) is x<-3\lor x>-3