To find the slope, graph the points they give on the question. Then make a right triangle connecting the points. To find the slope divide the rise/run. The rise is how many down from the top point to the second and the run is how many across. Divide those 2 numbers you find. To tell if it is negative or positive, look at the line. If it goes from left to right, it is negative. But if it goes right to left than it is positive. I hope this helps! If you have any more questions let me know! I am going over this in class now and have gotten the hang of it.