What is the domain of f(x)=|x^2-81| ?

The domain of f(x)=|x^2-81| is -infinity <x<infinity

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domain of f(x)=|x^2-81|

domain

f (x) = x^{2} - 81

- \infty < x < \infty

Interval Notation

(- \infty, \infty)

Solution steps

The function has no undefined points nor domain constraints. Therefore, the domain is

- \infty < x < \infty

- 1

7 + 3 x - 6

\frac{1}{x + 5}

f (x) = \frac{1}{2 x + 6}

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

What is the domain of f(x)=|x^2-81| ?
The domain of f(x)=|x^2-81| is -infinity <x<infinity