## 1.3 Introduction to Functions

#### Different Types of Relations

- Below are four types of possible relations:

a) One-to-one

b) One-to-many

c) Many-to-one

d) Many-to-many

- The interpretation is quite straightforward.

a) One-to-one relations means that for every element in the domain set (or simply every value of x), there is one and only one corresponding element in the range (as in, one corresponding y).

Read More »1.3 Introduction to Functions