Write the Domain of the Function in Interval Notation $$k ( x ) = \frac { 1 } { \sqrt { 2 x ^ { 2 } + 3 x - 54 } }$$

Multiple Choice

Write the domain of the function in interval notation.
- $$k ( x ) = \frac { 1 } { \sqrt { 2 x ^ { 2 } + 3 x - 54 } }$$

A) $( - \infty , - 6 ) \cup \left( \frac { 9 } { 2 } , \infty \right)$
B) $\left( - 6 , \frac { 9 } { 2 } \right)$
C) \{ \}
D) $( - \infty , \infty )$