What is the domain of f(x)=(x-9)/(9x^2) ?

The domain of f(x)=(x-9)/(9x^2) is x 0

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domain of f(x)=(x-9)/(9x^2)

domain

f (x) = \frac{x - 9}{9 x ^{2}}

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) = \frac{9 x}{x + 9}

f (x) = 3 x^{2} - \frac{10}{x}

f (x) = \frac{2}{x + 5}

- 4

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

What is the domain of f(x)=(x-9)/(9x^2) ?
The domain of f(x)=(x-9)/(9x^2) is x<0\lor x>0