I am stuck on this problem. Can you please help? Please show your work so I can understand the concept please.

Question

Assume f(x) = 4x+8 and g(x)=5. 

 

What is the value of (G o F)(-1)?

Answer 1

G(F(x))

 

 

F(x) is the input of G(x).

 

G(F(x)) = G(4x + 8)

 

 

Since G(x) is just a constant, the result is just 5.