Time series graph.

This week for math's I have been learning to create a time series graph. The Learning object was to create a time series graph. If you do make a time series graph you should have a Title, A title for the x and y axis and remember to label the important information categories. I found this task quite easy to begin with. Something I need to work on is Making sure I understand the task that I work on. I would like to know more about why we have to be consistent collecting data.