A graph is a diagram, usually a line or curve, which shows how two or more
sets of numbers or measurements are related.
Click Play to see what happens to the graph below:
The names of the axes on a graph are the vertical
axis and the horizontal axis. The vertical axis is sometimes called the y
axis, and the horizontal axis is sometimes called the x axis.
Different types of line are often used on a graph. Click here to find out what the lines are called.