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

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

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

domain

y = \frac{3 x}{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

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

f (x) = \frac{4 x + 8}{x ^{2} + 4 x - 32}

\frac{2}{9 x}

\frac{x - 4}{5 x - 3}

f (x) = - 0.5 x^{2} + 40 x - 300

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