Prepare a graph of sales and net income for the years 2013 - 2016. For the purposes of this exercise, assume the following historical sales and net income figures for Joe's Fly-By-Night Oil:
Year Sales Net Income
2013 $8,200 $1,500
2014 $8,000 $1,400
2015 $9,000 $1,600
2016 $10,000 $1,800