NCERT Class 9 Solutions: Coordinate Geometry (Chapter 3) Exercise 3.2 – Part 1
The definition of coordinate geometry is the study of algebraic equations on graphs. An example application of coordinate geometry is plotting points, lines and curves on a coordinate place with x and y axis.
Q1 Write the answer of each of the following question:

What is the name of horizontal and vertical line drawn to determine the position of any point in the Cartesian plane?

What is the name of each part of the plane formed by these two lines?

Write the name of the point where these two lines intersect.
Solution:

The name of horizontal lines and vertical lines drawn to determine the position of any point in the Cartesian plane is xaxis and y axis respectively.

The name of each part of the plane formed by these two lines xaxis and yaxis is called as quadrants (one fourth part)

Name of the point where there two lines intersect is called as origin.
Q2 See Fig. and write the following:

The coordinates of B.

The coordinates of C.

The point identified by the coordinates

The point identified by the coordinates .

The abscissa of the point D.

The ordinate of the point H.

The coordinate of the point L.

The coordinate of the point M.
Solution:

The xcoordinate and the ycoordinate of point B are −5 and 2 respectively.
Therefore, the coordinates of point B are

The xcoordinate and the ycoordinate of point C are 5 and −5 respectively.
Therefore, the coordinates of point C are

The point whose xcoordinate and ycoordinate are −3 and −5 respectively is point E.

The point whose xcoordinate and ycoordinate are 2 and −4 respectively is point G.

The xcoordinate of point D is 6.
Therefore, the abscissa of point D is 6. Abscissa is the distance of the point to a point to the vertical or y axis, measured parallel to the horizontal or x –axis. That is it is the x coordinate.

The ycoordinate of point H is −3.
Therefore, the ordinate of point H is −3. Ordinate is the distance of the point to a point to the horizontal or x axis, measured parallel to the vertical or y –axis. That is it is the y coordinate.

The xcoordinate and the ycoordinate of point L are 0 and 5 respectively.
Therefore, the coordinates of point L are

The xcoordinate and the ycoordinate of point Mare −3 and 0 respectively.
Therefore, the coordinates of point M are