Exercise 3.2

Q1. Write the answer of each of the following questions :

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

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

iii) Write the name of each point where these two lines intersect.

Answer :

i) The x-axis and the y-axis.

ii) Quadrants.

iii) The Origin.

Q2. See the given figure and write the following :

i) The coordinate of B.

ii) The coordinate of C.

iii) The point identified by the coordinates (-3, -5).

iv) The point identified by the coordinates (2, -4).

v) The abscissa of the point D.

vi) The coordinate of the point H.

vii) The coordinates of the point L.

viii) The coordinates of the point M.

Answer :

i) The coordinates of `B` are `(-5, 2).`

ii) The coordinates of `C` are `(5, -5)`.

iii) The point identified by the coordinates `(-3, -5)` is `E`.

iv) The point identified by the coordinates `(2, -4)` is `G`.

v) The abscissa of point `D` is `6`.

vi) The coordinates of the point `H` is `-3`.

vii) The coordinates of the point `L` is `(0, 5)`.

viii) The coordinates of the point `M` is `(-3, 0)`.

NCERT Class 9th solution of Exercise 3.1