What does slope?
example of slope?

Rise over run would be a thing to start with since you use graphs

Ok so follow the steps. If you have to ask for further info or watch a couple instructional videos but I will help you out on number 1 if i can. Ok so the formula for a slope is rise/run. The rise is the Y-axis and run is the X-axis. you choose point along the line so the points I am going to choose are. (2, 3) and (-3, -2).  So now we take and add the Y coordinates (3 and -2) so: 3+ (-2) =  1 and now we take and add the X coordinates ( 2 and -3) so: 2+ (-3)= (-1). Now if i am correct the equation now 1/(-1) which would come out to be the slope of 1 i believe.