Find the Domain of the Rational Expression $f ( x ) = \frac { 3 x - 4 } { 8 }$

Multiple Choice

Find the domain of the rational expression.
- $f ( x ) = \frac { 3 x - 4 } { 8 }$

A) $\{ x \mid x$ is a real number $\}$
B) $\{ x \mid x$ is a real number and $x \neq 0 \}$
C) $\{ x \mid x$ is a real number and $x \neq 8 \}$
D) $\left\{ x \mid x \right.$ is a real number and $\left. x \neq \frac { 4 } { 3 } \right\}$