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

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

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

domain

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

x < - 1 or x > - 1

Interval Notation

(- \infty, - 1) \cup (- 1, \infty)

Solution steps

Find undefined (singularity) points:

x = - 1

The function domain

x < - 1 or x > - 1

\frac{x}{x ^{2} - 81}

2 x - 10

f (x) = 2 x^{2} - 8 x + 6

2 x - 14

f (x) = 8 x - 1

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