# Basics of Coordinate Geometry

Coordinate Geometry is a very interesting chapter in mathematics. playing with coordinates and graphs, am I right?

This is an introduction or you can say basics of the coordinate geometry. I hope you will be enjoying learning coordinate geometry chapter.

Here we learn the concept of coordinate geometry. Basically the X-axis, Y-axis, Four Quadrants, concept of positive

and negative axis etc.

We learnt ;-

1.    To locate the position of an object or a point in a plane, we require two perpendicular lines.

2.    When Perpendicular lines intersect each other there is formation of four quadrants namely first quadrant (1st) ,

3.     Intersecting point is called origin.

4.     Horizontal line is called X-axis  while vertical line is called y-axis.

5.     X-axis is positive right side of the origin while negative in left side of the origin.

6.     Y – axis is positive above the origin and negative below the origin.

7.     Particular location is defined by the length traveled in X-axis called X-coordinate or abscissa followed by the length traveled in Y-axis c           called y-coordinate or ordinate . Using comma( , ) we separate X & Y Coordinates.

8.     IF the abscissa of a point is x and the ordinate is y then (x,y) are called coordinates of the point.

9.    The coordinates of a point on the x-axis are of the form (x,o) & and that of the point on the y-axis are (0,y)

10.  The coordinates of the origin is (0,0).

11.. The coordinates of the first quadrant are of the form    ( + , + )

The coordinates of the second quadrant are of the form   ( – , + )

The coordinates  of the third quadrant are of the form  ( – , – ).

The coordinates of the fourth quadrant are of the form ( – , + ).

12. If x is not equal to y then, (x,y) is not equal to (y , x ) and (x,y) equal to (y,x) if x=y.

I hope you understand how to graph the points also in a coordinate plane or Cartesian Plane.

next Video or lesson we will learn to graph the points with a lot of examples in different ways.

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