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:
● Ordered pair of a Coordinate System
● Find the Co-ordinates of a Point
● Coordinates of a Point in a Plane
● Plot Points on Co-ordinate Graph
● Simultaneous Equations Graphically
● 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
7th Grade Math Problems
8th Grade Math Practice
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