How to graph the slope of a line using the graph?

We need to look at gaph and mark two points. We have: (-3,1) and (2,3). We need to find how many units the value changed vertically and then divide it by the number of units it changed horizontally.
[tex]\text{slope}=\frac{3-1}{2-(-3)}=\frac{2}{2+3}=\frac{2}{5}[/tex]The slope is 2/5.