What is the domain of x-8 ?

The domain of x-8 is -infinity <x<infinity

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domain of x-8

domain

x - 8

- \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

f (x) = 50 - 4 x

ln (x + 9)

\frac{x ^{3}}{x ^{2} - 9}

(- 6, - 5), (- 4, - 4)

f (x) = \frac{5 x + 4}{x + 5}