Building Functions Graphically

In each app below, functions f and g are shown as graphs. For each exercise:
  1. Plot several points that lie on the graph you're asked to construct. To do this, you can use the POINT tool Toolbar Image or simply use the Input... line (at bottom)
  2. Use the PEN tool Toolbar Image to hand-sketch the graph as best you can.

Sketch the graph of (f + g).

Sketch the graph of (g - f).

Sketch the graph of f(g(x)).

Sketch the graph of g(f(x)).