(i) The name of horizontal lines and vertical lines drawn to determine the position of any point in the Cartesian plane is X-axis and Y-axis respectively. (ii) The name of each part of the plane formed by these two lines X-axis and Y-axis is quadrants. In general, which are represented as Q1, Q2, Q3 and Q4. (iii) The point where these two lines intersect is called origin. Which is represented by O(0,0).