Graph Co-ordinates System

In geometry, a coordinate system is a system which uses a set of numbers, or coordinates, to uniquely determine the position of a point or other geometric element. The order of the co-ordinates is the significant and they are sometimes identified by their position in an ordered tuple and sometimes by a letter, as in 'the x-co-ordinate'. In elementary mathematics the co-ordinate are taken to be real numbers.    (Source : Wikipedia)

I like to share this The Rectangular Coordinate System with you all through my article. 

Examples for graph co-ordinates system:

Example 1:

Draw the graph of the line joining the co-ordinate points (2, 3) and (−4, 1).

Solution:

 Draw the x-axis and y-axis on a graph paper sheet and take 1 cm = 1 unit on both the axes. Let A and B be the co-ordinate points (2, 3) and (−4, 1). We mark these points on the graph paper sheet. We join the points A and B by a line  and extend it along the two directions. The required graphing is now obtained

Example 2:

Draw the graph of the line joining the co-ordinate points (-3, 3) and (4, 3).

Solution:

 Draw the x-axis and y-axis on a graph paper sheet and take 1 cm = 1 unit on both the axes. Let A and B be the co-ordinate points (-3, 3) and (4, 3). We mark these points on the graph paper sheet. We join the points A and B by a line  and extend it along the two directions. The required graph is obtained

Example 3:
Draw the graph of the line joining the co-ordinate points (-2,0) (0,3)

Solution:

 Draw the x-axis and y-axis on a graph paper sheet and take 1 cm = 1 unit on both the axes. Let A and B be the co-ordinate points (-2, 0) and (0, 3). We mark these points on the graph paper sheet. We join the points A and B by a line  and extend it along the two directions. The required graphing is now obtained

I am planning to write more post on 10th std samacheer kalvi question bank. Keep checking my blog.

Practice problem for graph co-ordinates system:

1. Draw the graph of the line joining the co-ordinate points (9, 3) and (21, 3).

2. Draw the graph of the line joining the co-ordinate points (5, 2) and (−4, 7).