NCERT Solutions for Class 9 Maths Chapter 3 Coordinate Geometry Ex 3.3
NCERT Solutions for Class
9 Maths Chapter 3 Coordinate Geometry Ex 3.3 are
the part of NCERT Solutions for Class 9 Maths. Here you can find the NCERT
Solutions for Class 9 Maths Chapter 3 Coordinate Geometry Ex 3.3.
- NCERT Solutions for Class 9 Maths Chapter 3 Coordinate Geometry Ex 3.1
- NCERT Solutions for Class 9 Maths Chapter 3 Coordinate Geometry Ex 3.2
- NCERT Solutions for Class 9 Maths Chapter 3 Coordinate Geometry Ex 3.3
Ex 3.3 Class 9 Maths Question 1.
In which
quadrant or on which axis does each of the points (-2, 4), (3, -1), (-1, 0),
(1, 2) and (-3, – 5) lie? Verify your answer by locating them on the Cartesian
plane.
Solution:
1. (-2, 4) lies
in the 2nd quadrant.
2. (3, -1) lies
in 4th quadrant.
3. (-1, 0) lies
on x-axis.
4. (1, 2) lies in
1st quadrant.
5. (-3, -5) lies
in 3rd quadrant.
Ex 3.3 Class 9 Maths Question
2.
Plot the
points (x, y) given in the following table on the plane, choosing suitable
units of distance on the axes.
Solution:
The given
points are (-2, 8), (-1, 7), (0, -1.25), (1, 3) and (3, -1).
To plot
these points:
(i) We draw
X’OX and YOY’ two mutually perpendicular axes.
(ii) We
choose suitable units of distance on the axes.
(iii) To
plot (-2, 8), we start from O, take (-2) units on x-axis and then (+8) units on
y-axis. We mark the point as A(-2, 8).
(v) To plot
(0, -1.25), we move along 1.25 units on the y-axis below the origin and mark
the point as C(0, -1.25).
(vi) To plot (1, 3), we take (+1) unit on the x-axis and then
(+3) units on the y-axis. We mark the point as D(1, 3).
(vii) To
plot (3, -1), we take (+3) units on the x-axis and then (-1) unit on the y-axis.
We mark the point E(3, -1).
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