NCERT Solutions Class 9 Maths
Chapter – 3 (Coordinate Geometry)
The NCERT Solutions in English Language for Class 9 Mathematics Chapter – 3 Coordinate Geometry Exercise 3.2 has been provided here to help the students in solving the questions from this exercise.
Chapter 3: Coordinate Geometry
Exercise – 3.2
1. Write the answer to each of the following questions.
(i) What is the name of the horizontal and vertical lines drawn to determine the position of any point in the Cartesian plane?
Answer – The name of horizontal and vertical lines drawn to determine the position of any point in the Cartesian plane is the x-axis and the y-axis, respectively.
(ii) What is the name of each part of the plane formed by these two lines?
Answer – The name of each part of the plane formed by these two lines, the x-axis and the y-axis, is quadrants.
(iii) Write the name of the point where these two lines intersect.
Answer – The point where these two lines intersect is called the origin.
2. See Fig.3.14, and write the following.
i. The coordinates of B.
ii. The coordinates 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 ordinate 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. Abscissa means x coordinate of point D. So, abscissa of point D is 6.
vi. Ordinate means y coordinate of point H. So, the ordinate of point H is -3.
vii. The coordinates of point L are (0, 5).
viii. The coordinates of point M are (−3, 0).
