To learn how points are plotted, try here
To learn about x- and y-intercepts, try here
To learn how to find the slope from two points, try here
To learn how to find the equation of a line from a point and a slope (or from two points), try here
Once you have learned the basic terms and techniques, please attempt the exercise. If you get stuck, you can then reply with a clear listing of your steps and reasoning so far. Once we can "see" where you are having difficulty, we can begin to provide specific helps.