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Write the answer of each of the following questions : (i) What is the name of horizontal and the vertical lines drawn to determine the position of any point in the Cartesian plane ? (ii) What is the name of each part of the plane formed by these two lines ? (iii) Write the name of the point where these two lines intrsect. |
Answer» (i) In a Cartesian plane, to determine the position of any point, horizontal line is called x-axis. Vertical line is y The y-coordinate is also called the ordinate. Horizontal line → xOx’ Vertical line → yOy’ (ii) The name of each part of the plane formed by these two lines is called Quadrant. I Quadrant → xOy II Quadrant → yOx’ III Quadrant → x’Oy’ IV Quadrant → y’Ox (iii) The name of the point where these two lines intersect is called origin. Coordinates of origin are (0. 0). |
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