1. Slope = rate of change Shown on the graph, for 2016 there are 36 entries. For 2017, there are 40 Since it’s only one year You can subtract 36 from 40 40 - 36 = 4 Solution: the slope is 4
2. Months increase the most, the lines which are steeper and going upward (since it’s increasing) Solution: from 2015 to 2016