What is the domain of (x+7)/3 ?

The domain of (x+7)/3 is -infinity <x<infinity

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domain of (x+7)/3

domain

\frac{x + 7}{3}

- \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) = lo g_{x} (4 - x^{2})

f (x) = lo g_{2} (x^{2} + 64)

y = \frac{- 3}{5 x + 20} + 7

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

f (x) = \frac{- 1}{x - 1}