1) The Set of All Functions from A to B
9.13. Let A = {1, 2, 3} and B = {x, y}. Determine $B^A$.
9.14. For sets A = {1, 2, 3, 4} and B = {x, y, z}, give an example of a function $g \in B^A$ and a function $h \in B^A$.
9.15. For A = {a, b, c}, determine $2^A$.
9.16. (a) Give an example of two sets A and B such that $|B^A| = 8$.
(b) Give an example of an element in $B^A$ for the sets A and B given in (a).