1. Let f be the function defined by the arrow diagram below:
a) The domain and co-domain of f are: domain = {1, 2, 3}, co-domain = {a, b, c}.
b) f(1) = b, f(2) = a, f(3) = a.
c) The range of f is {a, b}.
d) The inverse image of a = {2, 3}. The inverse image of b = {1}. The inverse image of c = Ø.