Class 9 • Maths • Chapter 3
COORDINATE GEOMETRY
True & False Quiz
Quadrant. Abscissa. Ordinate.
✓True
✗False
25
Questions
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Ch.3
Chapter
|
IX
Class
Why True & False for COORDINATE GEOMETRY?
How this format sharpens your conceptual clarity
🔵 Coordinate Geometry is the meeting point of algebra and geometry — every graph, function, and shape in later mathematics lives on the Cartesian plane.
✅ T/F tests quadrant identification, sign conventions for coordinates, and the positions of special points (axis points, origin).
🎯 A point on the x-axis has y-coordinate = 0; a point on the y-axis has x-coordinate = 0 — these are distinct from the origin (0,0).
📋
Read each statement carefully. Click True or False — instant feedback with explanation appears. Submit anytime; unattempted questions are marked Skipped.
Q 1
The origin in a Cartesian plane is (0, 0).
Q 2
The x-axis is a horizontal line.
Q 3
The y-axis is a vertical line.
Q 4
The coordinates of any point on the x-axis are of the form (x, 0).
Q 5
The coordinates of any point on the y-axis are of the form (0, y).
Q 6
The point (5, 0) lies on the y-axis.
Q 7
The point (0, -3) lies on the y-axis.
Q 8
If the x-coordinate and y-coordinate are both positive, the point lies in the first quadrant.
Q 9
The point (-4, 7) is in the third quadrant.
Q 10
The y-coordinate is called the ordinate.
Q 11
The abscissa of the point (2,6) is 2.
Q 12
The axes divide the plane into four quadrants.
Q 13
The point (-3, -4) is in the third quadrant.
Q 14
The point (0, 0) lies in all four quadrants.
Q 15
A point with coordinates (x, y) always lies in one of the four quadrants.
Q 16
The sign of the coordinates determines the quadrant of a point.
Q 17
The point (5, -1) is in the fourth quadrant.
Q 18
The coordinates (x, y) can be negative, zero or positive.
Q 19
Points (2,3) and (3,2) are identical.
Q 20
Every point on x-axis has its y-coordinate zero.
Q 21
The line x=3 is parallel to the y-axis.
Q 22
In second quadrant, x is negative and y is positive.
Q 23
Every point in the third quadrant has both its coordinates negative.
Q 24
The axes can be extended indefinitely.
Q 25
The coordinate axes are always perpendicular to each other in a Cartesian plane.
Key Takeaways — COORDINATE GEOMETRY
Core facts for CBSE Boards & exams
1
Cartesian plane: two perpendicular number lines — x-axis (horizontal) and y-axis (vertical).
2
Origin: (0,0) — where both axes intersect.
3
Q₁: (+,+); Q₂: (−,+); Q₃: (−,−); Q₄: (+,−).
4
Abscissa = x-coordinate (distance from y-axis); Ordinate = y-coordinate (distance from x-axis).
5
A point on the x-axis: (x, 0); a point on the y-axis: (0, y).
6
The perpendicular from a point to x-axis gives its ordinate; to y-axis gives its abscissa.