Introduction to quadratic equations and graphs

Essential Mathematics Year 9

Downloadable Lesson notes

Chapters

Welcome

Learning objectives

Recap of past learning

What is a quadratic equation?

What does a quadratic graph look like?

Examples: Writing in standard form

Examples: Testing for a solution

Remembering the Null Factor Law

Using the Null Factor Law

Don't be tricked

Final words

Description

This is the first video in a new series looking at Quadratic Equations at a Year 9 level. We have, in previous lessons, looked at how we can factorise all the different forms of quadratic equations. This video, and series, looks at what it means to solve quadratic equations. I look at what a solution is at the same time as showing you what a quadratic graph looks like (and the important points!). I then talk about the Null Factor Law and how it is used to find the solutions to Quadratic Equations. There are lots of worked examples and I hope that I've explained the theory in an easy to understand way!

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