What is the domain of (2x)/(x^2+81) ?

The domain of (2x)/(x^2+81) is -infinity <x<infinity

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domain of (2x)/(x^2+81)

domain

\frac{2 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

y = 2 x + 7 (- 1.1)

\frac{6 x + 7}{x + 6}

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

f (x) = \frac{x ^{2} - 5 x - 1}{x - 3}

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

What is the domain of (2x)/(x^2+81) ?
The domain of (2x)/(x^2+81) is -infinity <x<infinity