Find the Domain of the Function $f ( x ) = - 9 x - 2$

Multiple Choice

Find the domain of the function.
- $f ( x ) = - 9 x - 2$

A) $\{ x \mid x > 0 \}$
B) $\{ x \mid x \neq 0 \}$
C) $\{ x \mid x \geq 2 \}$
D) all real numbers