Find the Domain f(x)=3x-9

$f (x) = 3 x - 9$

Step 1

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation:

$(- \infty, \infty)$

Set-Builder Notation:

${x | x \in ℝ}$

Step 2

Find the Domain f(x)=3x-9

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