The functions f and g are defined by these sets of input and output values.
g = {(1, 2), (- 2, 4), (5, 5), (6, - 2)}
f = {(2, 1), (4, - 2), (5, 5), (- 2, 6)}
a. Find g( f (2)).
b. Find f (g(6)).
c. Select any number from the domain of either g or f, and find f (g(x)) or g( f (x)), respectively.
Describe what is happening.