What is the domain of (x^2-4x)/9 ?

The domain of (x^2-4x)/9 is -infinity <x<infinity

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domain of (x^2-4x)/9

domain

\frac{x ^{2} - 4 x}{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

\frac{5 x}{8 x - 3}

y = lo g_{3} (x^{2} - 9)

y = x^{2} + 8 x + 15

y = lo g_{3} (x^{2} - 1)

- 3 x + 9

What is the domain of (x^2-4x)/9 ?
The domain of (x^2-4x)/9 is -infinity <x<infinity