### Lesson 1-Identifying Quadratic Functions

A. Subject Name: Mathematics

B. Lesson No: 1

C. Lesson Title:

At the end of the lesson,the student is expected to:

B. Lesson No: 1

C. Lesson Title:

**Identifying Quadratic Functions**

D. Learning Outcome:At the end of the lesson,the student is expected to:

- Differentiate quadratic functions from other types of function
- Define a quadratic function f(x) =ax^2+bx+c
- Identify quadratic function
- rewrite a quadratic function f(x)=ax^2+bx+c in the form f(x) = a(x-h)^2 +k and vice versa.

E. Lesson Presentation:

A quadratic function is a second degree function. click here...

F. Lesson Activities:

Open the URL interactive tutorials.

For more to practice & check your understanding.Click here....

Email your answer to sampan_lalaine@yahoo.com.ph.

G. Lesson Assessment:

Check your learnings. Answer this!

Email to sampan_lalaine@yahoo.com.ph.

Your learnings about quadratic functions

Guide Questions:

How would you know that a function is quadratic or not?

Cite 5 examples.

Why should **a** in y = ax^2 +bx+c,not equal to zero?

Cite physical situations that can be presented mathematically using quadratic function.

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