What is the domain of f(x)=(x^2)/(x^2+9) ?

The domain of f(x)=(x^2)/(x^2+9) is -infinity <x<infinity

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domain of f(x)=(x^2)/(x^2+9)

domain

f (x) = \frac{x ^{2}}{x ^{2} + 9}

- \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) = x^{3} + 3 x^{2} - 189 x

f (x) = e^{y - 1}

f (x) = \frac{6 x - 10}{x ^{2} - 1}

f (x) = \frac{3}{7} x - 6

\frac{1}{- x + 4}

What is the domain of f(x)=(x^2)/(x^2+9) ?
The domain of f(x)=(x^2)/(x^2+9) is -infinity <x<infinity