1. The problem statement, all variables and given/known data I am trying solve a question which invokes a function f(…) and the argument of function is the same function with -1 as an argument i.e. f(f(-1)) However the statements of the function are not provided. Instead a graph is provided which is uploaded. I cant understand which variable of the graph i.e. x or y will get this value of -1? Somebody please guide me? 2. Relevant equations f(f(-1)) 3. The attempt at a solution I cant understand what would happen when function f(-1) is invoked. What statements would be executed? Which variable of the graph would get -1? Somebody please guide me. Zulfi.