Begin by clicking on block A1

Start entering the data you want in the graph

Don't forget to extend the columns so the entire title can be seen

As you enter the data click on the next cell or hit enter to move to the cell below

Once your data is entered, highlight all the columns where you have entered your data.

The next step is to go to the Insert tab and click on the line graph you wish to use.

Make sure all you data transferred correctly to your graph

Then add in the title for your graph and axis by clicking on the Layout tab and selecting Chart Title then Axis Title

After you have entered your titles your done!

Don't forget to save your graph after you are finished.