Key learning points

1. It is possible to plot coordinates approximately in the correct quadrant.
2. Coordinates can be plotted exactly when the axes are labelled.
3. By careful consideration of coordinates the missing vertices of a shape can be found.

Common misconception

Keywords

• Quadrant - Any one of the four areas into which a space is divided by the <i>x</i>- and <i>y</i>-axes in the Cartesian coordinate system.