Simultaneous equations like 𝒚 = 2𝒙 - 1 and 𝒚 = 𝒙 + 1 can be represented graphically. To solve the equations graphically, the two lines 𝒚 = 𝒙 + 1 and 𝒚 = 2𝒙 - 1 are drawn on the same diagram.

This KS3 or GCSE PowerPoint activity has a couple of simple slides showing what we mean by solving simultaneous equations, and how to solve them graphically. There are some questions and answers at ...

The first two sections fit onto two sides of A4 and part 3 is the extension. There is also an answer sheet. There is a RAG table for students to mark their progress. You can amend this depending on ...

To find solutions from graphs, look for the point where the two graphs cross one another. This is the solution point. For example, the solution for the graphs \(y = x + 1\) and \(x + y = 3\) is the ...