In graphing a coordinate graph is a grid with x axes and y axes crossing through the center and the intersecting point is marked by a dot.
Coordinate Axes:
On a graphpaper the two mutually drawn perpendicular straight lines X’OX and YOY’, intersecting each other at the point O. These perpendicular straight lines are known as coordinate axes.
The line X’OX is called the xaxis and the line YOY’ is called the yaxis, while the point 0 is called the origin.
The plane of the graph paper containing both the coordinate axes (xaxes and yaxes) is called the Cartesian plane.
On righthand side of the yaxis, every endpoint of a square on the xaxis, represents a positive integer, as shown in the figure.
On lefthand side of the yaxis, every endpoint of a square on the xaxis, represents a negative integer, as shown in the figure.
Above the xaxis, every endpoint of a square on the yaxis, represents a positive integer, as shown in the figure.
Below the xaxis, every endpoint of a square on the yaxis,, represents a negative integer, as shown in the figure.
Related Concepts:
● Ordered pair of a Coordinate System
● Find the Coordinates of a Point
● Coordinates of a Point in a Plane
● Plot Points on Coordinate 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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