1. Identify the coordinates of each point from the provided list: (5;0), (-5;12), (-7;8), (-3;1), (-9;3), (-5;-6), (-2;-3), (2;-4), (6;-3), (8;-1), (9;2), (12;3), (11;3), (5;2), (3;4), (3;7.5), (0;9), (-3;14), (-3;9.5), (10;3).
2. For each point (x;y), locate the x-coordinate on the horizontal axis and the y-coordinate on the vertical axis.
3. Mark the intersection of these two lines as a point on the graph.
4. Repeat for all given points.