What is the domain of f(x)=(9x)/(|x|) ?

The domain of f(x)=(9x)/(|x|) is x 0

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domain of f(x)=(9x)/(|x|)

domain

f (x) = \frac{9 x}{∣ x ∣}

x < 0 or x > 0

Interval Notation

(- \infty, 0) \cup (0, \infty)

Solution steps

Find undefined (singularity) points:

x = 0

The function domain

x < 0 or x > 0

f (x) = ln (6 x - 6)

3 x^{2} \cdot x + 7

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

f (x) = ln (2 - e^{x}) - 2 x

f (x) = - (x - 3)^{2} + 3

What is the domain of f(x)=(9x)/(|x|) ?
The domain of f(x)=(9x)/(|x|) is x<0\lor x>0