Coordinate Geometry

Coordinate Geometry

1. Cartesian System

   • It is used for describing the Position of a point in a plane
   • ,It is indicated by (X,Y X-coordinate is abscissa abscissa , Y-coordinate is ordinate
   • It is divided in 4 quadrants Quadrant 1 (X,Y), Quadrant 2(-X,Y), Quadrant 3(-X,-Y ) , Quadrant 4(X,-Y)

2. Two Perpendicular line

   • Horizontal line X-axis
   • Vertical line Y-axis

3. The Fixed point origin

   • -Ve Y-axis (0,-y)
   • +Ve Y-axis (0,y)
   • -Ve X- axis (-x,0)
   • +Ve X- axis (x,0)

4. Equations

   • Line parallel to Y-axis is x=constant Y axis is x= 0
   • Line parallel to X-axis is y =constant X axis is y= 0

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