Answer :
ANSWER
a. f(g(x)) = 2x + 6
EXPLANATION
In the composition f(g(x)) we just have to replace every x in function f(x) by the function g(x):
[tex]f(g(x))=2g(x)=2(x+3)=2x+2\cdot3=2x+6[/tex]Therefore the answer is option a. 2x + 6
ANSWER
a. f(g(x)) = 2x + 6
EXPLANATION
In the composition f(g(x)) we just have to replace every x in function f(x) by the function g(x):
[tex]f(g(x))=2g(x)=2(x+3)=2x+2\cdot3=2x+6[/tex]Therefore the answer is option a. 2x + 6