Answer each of the following questions. Give reasons for your answer.

Ordered Pair

1.Is (0,10)=(10,0)?

2.Is (4, 33)=(22, 27)?

3. What is the first element of (2,5)?

Cartesian Products

Let M = {d, o, t) and N = {3,4}

a. Find MXN

b. Find NxM

c. Find MxM

d. How many elements are in MxN,

NxM, and MxM?