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How Science Works

How to Present Data - Line Graph.

There are a number of different ways of presenting data.

When both the independent variable and the dependent variable
are continuous, then the data is best shown as a line graph.

Below is a line graph showing enzyme activity plotted against
temperature. Temperature is the independent variable.
The independent variable is always plotted on the X axis of a graph.

Graph showing Enzyme Activity against Temperature

Note the increased number of points plotted closer together
between 35 and 45 °C where the graph changes shape (continued).

Other forms of data can be presented as a bar chart or a scattergram.

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