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 graph-paper 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 **x-axis** and the line YOY’ is called the **y-axis**, while the point 0 is called the **origin**.

The plane of the graph paper containing both the coordinate axes (x-axes and y-axes) is called the **Cartesian plane**.

On right-hand side of the y-axis, every end-point of a square on the x-axis, represents a positive integer, as shown in the figure.

On left-hand side of the y-axis, every end-point of a square on the x-axis, represents a negative integer, as shown in the figure.

Above the x-axis, every end-point of a square on the y-axis, represents a positive integer, as shown in the figure.

Below the x-axis, every end-point of a square on the y-axis,, 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 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****From Coordinate Graph to HOME PAGE**

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