What is the domain of (3x-7)/(x+9) ?

The domain of (3x-7)/(x+9) is x -9

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domain of (3x-7)/(x+9)

domain

\frac{3 x - 7}{x + 9}

x < - 9 or x > - 9

Interval Notation

(- \infty, - 9) \cup (- 9, \infty)

Solution steps

Find undefined (singularity) points:

x = - 9

The function domain

x < - 9 or x > - 9

f (x) = \frac{5 x}{8 - x}

\frac{x}{8 x - 5}

3 x - 12

3 x - 17

f (x) = lo g_{x} (x)

What is the domain of (3x-7)/(x+9) ?
The domain of (3x-7)/(x+9) is x<-9\lor x>-9