# Recognising linear and non-linear graphs

In this lesson you will learn to recognise the difference between linear and nonlinear graphs.

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

- Click "Close Video"
- Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

# Lesson summary: Recognising linear and non-linear graphs

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The next lesson in Quadratic expressions (9.9) is "Plotting quadratics (Part 1)"