What is the domain of f(x)=t^2-9 ?

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

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domain of f(x)=t^2-9

domain

f (x) = t^{2} - 9

- \infty < t < \infty

Interval Notation

(- \infty, \infty)

Solution steps

The function has no undefined points nor domain constraints. Therefore, the domain is

- \infty < t < \infty

4 t^{2}

\frac{7}{5 x ^{2}}

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

\frac{x ^{2}}{x + 3}

f (n) = \frac{n}{15 - 3 n}

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