Make sure you have paper and a pen

Make sure you have paper and a pen ready GCSE Preparation Course L 15: Graphical Inequalities Have a go at these questions while you’re waiting for the session to start Prior knowledge requirements: • Lesson 13: Inequalities • Lesson 14: Straight Line Graphs I will assume you are confident with these skills. If not then have a watch of the above lessons before you begin this lesson. @mrskslightbulbmoments https: //mrskslightbulbmoments. wordpress. com/

Quick recap of plotting a straight line graph Example Your turn… Plot the line y = 3 x -1 Plot the line y = -0. 5 x + 2 Plot the line y - 3 x = -1 Plot the line 2 y + x = 4 @mrskslightbulbmoments https: //mrskslightbulbmoments. wordpress. com/

Defining Simple Regions @mrskslightbulbmoments https: //mrskslightbulbmoments. wordpress. com/

Shading Simple Regions @mrskslightbulbmoments https: //mrskslightbulbmoments. wordpress. com/

Defining Complex Regions @mrskslightbulbmoments https: //mrskslightbulbmoments. wordpress. com/

Shading Complex Regions @mrskslightbulbmoments https: //mrskslightbulbmoments. wordpress. com/

KEY POINTS TO REMEMBER R Shading the parts you don’t want means you can shade as you go, although neither way is wrong Choose your method depending on how your equation is written, but you may find rearranging to y = mx + c easier to spot the correct region If you’re not sure which part to shade then try choosing a coordinate and substituting the x and y values into your inequality Remember to label your region R if you’ve been asked to! @mrskslightbulbmoments https: //mrskslightbulbmoments. wordpress. com/

Well done! Resources from this lesson Next lesson This Powerpoint will be available to download from my website: mrskslightbulbmoments. wordpress. com Further practice questions and videos can be found on Corbett Maths: 180 -182 You can find all previous lessons on my FB page, Youtube channel or website. If you would like to find out more about private tuition please see my website or contact me on mrskidson 14@gmail. com Good Luck next year! Make sure you follow my fb page (@mrskslightbulbmoments) for updates @mrskslightbulbmoments https: //mrskslightbulbmoments. wordpress. com/ 8