#### De Ayala-Gen. Math ( S.Y. : 2022-2023 )

In mathematics, a function is a binary relation between two sets that associates each element of the first set to exactly one element of the second set. Typical examples are functions from integers to integers, or from the real numbers to real numbers.

Function notation is a simpler method of describing a function without a lengthy written explanation. The most frequently used function notation is **f(x)** which is read as “f” of “x”. In this case, the letter x, placed within the parentheses and the entire symbol f(x), stand for the domain set and range set respectively.

**Types of Functions**

- One – one function (Injective function)
- Many – one function.
- Onto – function (Surjective Function)
- Into – function.
- Polynomial function.
- Linear Function.
- Identical Function.
- Quadratic Function.

A function rule describes how to convert an input value (x) into an output value (y) for a given function. An example of a function rule is **f(x) = x^2 + 3**.

To increase your understanding of functions, please read the attachments below and try to open the video tutorials.

#### Descartes-Media and Information Literacy (SY 2022-2023)

The Media and Information Literacy course introduces the learners to basic understanding of media and information as channels of communication and tools for the development of individuals and societies. It also aims to develop students to be creative and critical thinkers as well as responsible users and competent producers of media and information.

#### Mabini-General Mathematics ( S.Y.: 2022-2023 )

understanding of concepts and

techniques drawn from number and algebra,

trigonometry and world geometry, sequences, finance,

networks and decision mathematics and statistics,

in order to solve applied problems.

Mathematics makes our life orderly and prevents chaos.

Certain qualities that are nurtured

by mathematics are power of reasoning, creativity,

abstract or spatial thinking, critical thinking,

problem-solving ability and even effective communication skills.

This course is the core subject for Senior High School Learners

who opt to finish K-12 curriculum in the Philippines.

#### Sy-General Mathematics ( S.Y.: 2022-2023 )

understanding of concepts and

techniques drawn from number and algebra,

trigonometry and world geometry, sequences, finance,

networks and decision mathematics and statistics,

in order to solve applied problems.

Mathematics makes our life orderly and prevents chaos.

Certain qualities that are nurtured

by mathematics are power of reasoning, creativity,

abstract or spatial thinking, critical thinking,

problem-solving ability and even effective communication skills.

This course is the core subject for Senior High School Learners

who opt to finish K-12 curriculum in the Philippines.