1/9 because i you plug in two of the points into y2 -y1 over x2 -x1 thats what you get.
This is what the graph would look like
One way to carry out this problem is to simply take the value that you already know, which is that 1/5 is 20 % and multiply it by 2 for 2/5 or 2 (1/5ths) and do this for all of them. There is a pattern that occurs for every increase in one out of denominator of 5.
