Key learning points

1. A line graph is a way of representing the relationship between two variables.
2. One variable is represented by the x-axis and the other, by the y-axis.
3. Points are plotted like coordinates with a value on the x-axis and a value on the y-axis.

Keywords

• Line graph - A line graph is a graph where the points are connected by lines. It shows how something changes in value, usually over time.

• Variable - A variable is something that changes and can also be measured.

• X-axis - The x-axis is the horizontal line on a graph which goes through zero.

• Y-axis - The y-axis is the vertical line on a graph which goes through zero.

Common misconception