Answer:
You can solve this in two ways:
(1). plugging the 4 into g(x) and then putting what you get from that in to f(x)
(2). plug g(x) into f(x) and then plug in the 4
Option 1:
Plug 4 into g(x):
g(x)=−2(4)−6=−8−6=−14
Then plug g(x) into f(x):
f(x)=3(−14)−7=−42−7=−49
Option 2:
Plug g(x) into f(x):
f(x)=3(−2x−6)−7=−6x−18−7=−6x−25
Finally plug 4 into our current f(x):
f(x)=−6(4)−25=−24−25=−49
Step-by-step explanation:
D.None of these
