Activities

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- Before the Activity Files
- Teacher Notes PDF
Alignment
- Standards Alignment
- Textbook Alignment
Subject Area
- Maths: Algebra I: Linear Functions
- Maths: Algebra I: Quadratic Functions
- Maths: Precalculus: Functions and Graphs
Author

©Holt, Rinehart and Winston
Level

6-8
9-12
Activity Time

30 Minutes
Device
- TI-83 Plus Family
- TI-84 Plus
- TI-84 Plus Silver Edition
Other Materials

For more information on the Holt, Rinehart and Winston Mathematics Series, visit them on the web at www.hrw.com/math
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Explore Graphs and Factors

Activity Overview

Students use a graphing calculator to explore the relationship between the linear factors of a quadratic function and its zeros. They learn that the x-intercepts and axis of symmetry of a quadratic function can be determined from its linear factors.

This Technology Lab accompanies Lesson 5-3 from the ©2007 Holt, Rinehart and Winston Algebra 2 textbook.

Before the Activity

Review the lesson PDF files.
Make copies of the lesson PDF files for your class.

During the Activity

Students will:

Graph linear and quadratic functions.
Identify x-intercepts.
Explore the relationship between the linear factors of a quadratic function and its zeros.
Learn that the x-intercepts and axis of symmetry of a quadratic function can be determined from its linear factors.

After the Activity

Review student results:

As a class, discuss questions that appeared to be more challenging

Re-teach concepts as necessary

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Before the Activity Files

Alignment

Subject Area

Author

Level

Activity Time

Device

Other Materials