What is the domain of (1-3x)/(5+x) ?

The domain of (1-3x)/(5+x) is x -5

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domain of (1-3x)/(5+x)

domain

\frac{1 - 3 x}{5 + x}

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

y = - x^{2} + 4 x + 1

f (x) = - x^{2} + 9

(x - 5)^{2}

f (x) = x + e^{- 3 x}, - 2 \leq x \leq 2

f (x) = - (x + 1) (x - 2) (x - 3)

What is the domain of (1-3x)/(5+x) ?
The domain of (1-3x)/(5+x) is x<-5\lor x>-5