Topics
Real Numbers
Number Systems
Algebra
Polynomials
Coordinate Geometry
Pair of Linear Equations in Two Variables
- Pair of Linear Equations in Two Variables
- Graphical Method with Different Cases of Solution
- Algebraic Methods of Solving a Pair of Linear Equations
- Substitution Method
- Elimination Method
Geometry
Quadratic Equations
Trigonometry
Arithmetic Progressions
Mensuration
Coordinate Geometry
Statistics and Probability
Triangles
Circles
Introduction to Trigonometry
Heights and Distances
- Angles of Elevation and Depression
- Problems based on Elevation and Depression
Areas Related to Circles
Surface Areas and Volumes
Statistics
Probability
- Co-ordinate Axes
- Coordinates of a Point
- Important Results
CBSE: Class 10
CISCE: Class 10
CISCE: Class 10
Definition: Co-ordinate Axes
The two mutually perpendicular number lines intersecting each other at their zeroes are called rectangular axes or coordinate axes, or axes of reference.
CBSE: Class 10
CISCE: Class 10
CISCE: Class 10
Definition: Co-ordinates
The position of a point in a plane is expressed by a pair of numbers, one concerning the x-axis and the other concerning the y-axis. called co-ordinates.
-
x → distance from y-axis (abscissa)
-
y → distance from x-axis (ordinate)
CISCE: Class 10
Key Points: Co-ordinate Geometry
Sign Convention
-
Right of y-axis → +x
-
Left of y-axis → −x
-
Above x-axis → +y
-
Below x-axis → −y
Standard Line Results
-
x = 0 → y-axis
-
y = 0 → x-axis
-
x = a → line parallel to the y-axis
-
y = b → line parallel to the x-axis
Quadrant Reminder
| Quadrant | Sign of (x, y) |
|---|---|
| I | (+, +) |
| II | (−, +) |
| III | (−, −) |
| IV | (+, −) |
Video Tutorials
Shaalaa.com | Coordinate Geometry part 1 (Why coordinate geometry)
to track your progress
