Mathematics Lab Activity-05 Class IX | Coordinate geometry

 Lab Activity-05 Class iX

Mathematics Lab Activities on Coordinate geometry for class IX students, with complete observation tables, strictly according to the CBSE syllabus.

Chapter - 03  COORDINATE GEOMETRY

Activity - 05

Objective: 

To find the values of abscissae and ordinates of various points given in a cartesian plane.

Material Required

Cardboard, white paper, graph paper with various given points, geometry box, pen/pencil.

Procedure

1.   Take a cardboard of a convenient size and paste a white paper on it.

2.   Paste the given graph paper alongwith various points drawn on it [see Fig. 1].

3. Look at the graph paper and the points whose abcissae and ordinates are to       be found.

Figure 1

4. To find abscissa and ordinate of a point, say E, draw perpendiculars EH and EP from E to x-axis and y-axis, respectively. 

5. Then abscissa of E is OH and ordinate of E is OP. Here, OH = PE = 2 and EH = OP = 4. The point E is in first quadrant. Coordinates of E are (2, 4).

Observations

Find the coordinate of all the points given in the above figure in the first and second quadrant above the x-axis.

OBSERVATION TABLE - 1

Point	Abscissa	Ordinate	Coordinate	Quadrant/Axis
A	-2	0	(-2, 0)	X-axis
B	-3	1	(-3, 1)	II Quadrant
C	-3	3	(-3, 3)	II Quadrant
D	-2	4	(-2, 4)	II Quadrant
E	2	4	(2, 4)	I Quadrant
F	3	3	(3, 3)	I Quadrant
G	3	1	(3, 1)	I Quadrant
H	2	0	(2, 0)	X-axis

Find the coordinate of all the points given in the figure-1 in the third and fourth quadrant below the x-axis. 

Observation Table - 2

Point	Abscissa	Ordinate	Coordinate	Quadrant/Axis
I	-3	-1	(-3, -1)	III Quadrant
J	-3	-3	(-3, -3)	III Quadrant
K	-2	-4	(-2, -4)	III Quadrant
L	2	-4	(2, -4,)	IV Quadrant
M	3	-3	(3, -3)	IV Quadrant
N	3	-1	(3, -1)	IV Quadrant
O	0	0	(0, 0)	Origin
P	0	4	(0, 4)	Y-axis

Here observation teable-1 and observation table-2 are the mirror image of each other.

Result : 

With the help of this activity students able to understand the abscissa, ordinate, coordinates, quadrant and origin.

Applications

 This activity is helpful in locating the position of a particular city/place or country on map.

Thanks for your visit
please comment below