What is the domain of (x-7)/8 ?

The domain of (x-7)/8 is -infinity <x<infinity

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domain of (x-7)/8

domain

\frac{x - 7}{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

\frac{4 x + 9}{x + 4}

f (x) = \frac{5 x}{3 x ^{2} - 12}

f (x) = 2^{x - 1} + 1

\frac{3.5 x ^{2} - 6}{x + 2}

f (x) = \frac{8}{x + 8}