For the Given Functions F and G, Find the Requested $$f ( x ) = x + 6 ; g ( x ) = 7 x ^ { 2 }$$

Multiple Choice

For the given functions f and g, find the requested function and state its domain.
- $$f ( x ) = x + 6 ; g ( x ) = 7 x ^ { 2 }$$
Find $f + g$ .

A) $( f + g ) ( x ) = 7 x ^ { 2 } + x + 6 ; \{ x \mid x \neq - 6 \}$
B) $( f + g ) ( x ) = 7 x ^ { 2 } + x + 6$ ; all real numbers
C) $( f + g ) ( x ) = 7 x ^ { 2 } - x - 6$ ; all real numbers
D) $( f + g ) ( x ) = - 7 x ^ { 2 } + x + 6$ ; all real numbers