SA1 PREP ( COORDINATE GEOMETRY)

                             9^TH MATHEMATICS

       SA1 PREPARATION (COORDINATE GEOMETRY )

After going through this chapter students  will be able to learn

TYPE 1 Coordinate axes

1.       X axis is horizontal line

2.       Y axis is vertical lines.

TYPE 2 Origin :- The point of intersection

  (0 ,0)

TYPE 3 Quadrants

Four quadrants   Ist ( +,+) 2^nd ( - , +)   3^rd ( - , -)  4^th ( + , -)

Q. In which quadrant ( -5, 7 ) lies

TYPE 4 Abscissa , ordinate and coordinates.  

Abscissa:- The x coordinate of a point

Ordinate:- Y coordinate of a point

Coordinate :- ( x, y) are called coordinate of the point

*Practice Ex 3.3 and 3.4