That way, if you decide to look at a different Birth or Death Rate, you can change one cell instead of having to change all of them. In the Lab Model I. 1. Depending on how big you made things, it all may or may not fit on one page. Ask your TA for help if it prints ugly and you want it prettier. Model II is based on Model I, so all you have to do is just add some stuff.
People have to eat.
For model II, set Food to a constant value of 2000 for all 30 years. First highlight the Year and Population columns. Now all three columns should be highlighted. Proceed with your graphing as you did in Lab 0. Now there is a title for the secondary value axis.