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.

Both this and the following chapter will focus upon the presentation of your work, and address more practical issues. In this chapter we will take a look at figures, tables and references. These are ...

In the UK, much of our electricity is supplied by generators in power stations. A generator is a magnet that is placed at the centre of a wire coil. Rotating the magnet produces an electric current.