Use the table to evaluate the following.

Question

Composition Problem: (fof)(0)

 

x: 0

f(x): 2

g(x): -1

Answer 1

Well, ok ... f(f(0)) is what you want; f(0)= 2; then f(2) is UNKNOWN

 

so I join the chorus of those who suspect that you have not stated this problem completely correctly.

Answer 2

 f(x) :   means that f(x) is defined such that 

 

You need to tell us what it is defined as.  Just putting the 2 there is bad grammar.  

 

The correct grammar would be something like {x: f(x) =2}

 

If that is what you have, then f(anything) = 2.

 

If the question is explicit, then it is only defined for x = 0.

 

At least that is my interpretation.