In a bar graph, however, the horizontal axis can take on a slightly different role. For example, if you are comparing the populations from three different years in a bar graph, the horizontal axis ...

Use your mouse to size the graph's vertical and horizontal axis equally. Click the "Save" button to save the changes to the spreadsheet and the graph. Advertisement. Article continues below this ad.

Vertical Axis - This axis moves from the horizontal axis upwards. Once you know what the graph is about, you can read the data. You should always look at the scale on a time graph.

Watch this video to learn about straight line graphs of logarithmic and exponential functions. To play this video you need to enable JavaScript in your browser. This video can not be played ...