Coordinates of a Point

How to determine coordinates of a point?

On a graph paper draw X'OX and YOY'. Here X'OX and YOY’ be the two coordinate axes. 

Then mark a point on the graph and name the point as P such that P is at the perpendicular distance of a units from the y-axis and again similarly b units from the x-axis. Then, we denote that the coordinates of P are P(a, b)

From the above discussion, a is called the abscissa or x-coordinate of P and b is called the ordinate or y-coordinate of P. 

Examples to get coordinates of a point:

1. In the adjoining figure, to find the co-ordinate of point P the distance of P from y-axis is 2 units and the distance of P from x axis is 3 units.

Therefore the co-ordinates of point P are (2, 3).

2. In the adjoining figure, to find the co-ordinate of point P the distance of P from y-axis is 5 units and the distance of P from x axis is 5 units.

Therefore the co-ordinates of point P are (5, 5).

3. In the adjoining figure, to find the co-ordinate of point P the distance of P from y-axis is 7 units and the distance of P from x axis is 4 units.

Therefore the co-ordinates of point P are (7, 4).

4. In the adjoining figure, to find the co-ordinate of point P the distance of P from y-axis is 0 units and the distance of P from x axis is 0 units.

Therefore the co-ordinates of point P are (0, 0).

5. In the adjoining figure, to find the co-ordinate of point P the distance of P from y-axis is 0 units and the distance of P from x axis is 3 units.

Therefore the co-ordinates of point P are (0, 3).

6. In the adjoining figure, to find the co-ordinate of point P the distance of P from y-axis is 6 units and the distance of P from x axis is 0 units.

Therefore the co-ordinates of point P are (6, 0).

Related Concepts:

● Coordinate Graph

● Ordered pair of a Coordinate System

● Plot Ordered Pairs

● All Four Quadrants

● Signs of Coordinates

● Find the Co-ordinates of a Point

● Coordinates of a Point in a Plane

● Plot Points on Co-ordinate Graph

● Graph of Linear Equation

● Simultaneous Equations Graphically

● Graphs of Simple Function

● Graph of Perimeter vs. Length of the Side of a Square

● Graph of Area vs. Side of a Square

● Graph of Simple Interest vs. Number of Years

● Graph of Distance vs. Time

7th Grade Math Problems

8th Grade Math Practice

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