To describe the position of a table lamp on the study table, we have to take two lines, a perpendicular and horizontal. Considering the table as a plane and taking the perpendicular line as the Y-axis and the horizontal as the X-axis. Take one corner of the table as the origin where both X and Y axes intersect each other. Now, the length of the table is the Y-axis and the breadth is the X-axis. From the origin, join a line to the lamp and mark a point. Calculate the distance of this point from both X and Y axes and then write it in terms of coordinates. Let the distance of a point from the X-axis be x and from the Y-axis be y, then the position of the table lamp in terms of coordinates is (x, y).