1. The problem statement, all variables and given/known data Suppose f is the function defined by f(x) = l x-1 l Sketch the graph of y = f(f(x)) 2. Relevant equations 3. The attempt at a solution It's not so much sketching the graph that is the problem as much as it is figuring out how to set up the equations. How do I put an absolute value into an equation that already has one? I sketched a table so that I had x and y values of the original function, can that help me at all?