Question

What is the domain of the relation {(3, 4), (4, 3), (4, 4), (5, 2)}?

O A. {2, 3, 4, 5)
O B. (3, 4, 5)
O C. (4)
O D. (2,3,4)

Answer 1

B. (3, 4, 5)

We know that domain is the set of all elements in the first set.

• For example: (3, 4), (4, 3), (4, 4), (5, 2)
• So, the domain will be: 3, 4 & 5

While, ralation means a collection of ordered pairs having one item from each set makes up a relation between two sets.

⚘