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Finding Zeros of quadratic functions by factoring

Finding Zeros of quadratic functions by factoring

Author: Sharanjit Gill
Description:

Algebra-Seeing Structure in Expressions (A-SSE)

Write expressions in equivalent forms to solve problems. [Quadratic] 3. Choose and produce an equivalent form of an expression to reveal and explain properties of the quantity represented by the expression. a. Factor a quadratic expression to reveal the zeros of the function it defines. 

This tutorial is intended for students in 8th grade Algebra 1 class. However this could also help students in 7 grade or 9 grade algebra class. 

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Tutorial

"Big Question"

While doing the research/looking through different resources keep in mind what is the main Idea. Once you are done looking at different sources within this tutorial answer the following question on your notebook. 

Explain in words what is the main focus of this tutorial and then show it by doing an example?

 

Source: Sharanjit Gill

What are zeros ?

This explain differences and similarities between zeros and x-intercetps.

Solving quadratic equations by factoring

Basic factoring of quadratic equations (trinomials) simple case.

Factoring quadratics

Here learn how to factor quadratic equations/expressions

There are 4 pages on the link above on factoring quadratic equations and they get more complex as you move through pages.

Finding Zeros by factoring

This PowerPoint have explanations, examples and more videos.

Source: Sharanjit Gill and other sources cited within the PowerPoint.

Podcast on finding zeros by factoring

This podcast has explanations and step by step answer to some examples.

Source: Sharanjit Gill

More on finding zeros (Glogster)

Source: Sharanjit Gill and other sources cited within the glogster