Find the Domain of the Function $f ( x ) = 3 x - \frac { 2 } { \sqrt { x + 1 } }$

Multiple Choice

Find the domain of the function. $f ( x ) = 3 x - \frac { 2 } { \sqrt { x + 1 } }$

A) $( - 1,1 )$
B) $( - \infty , - 1 ) \cup ( 1 , \infty )$
C) $( - 1 , \infty )$
D) $( - \infty , - 1 ] \cup [ 1 , \infty )$
E) none of these