(overrightarrowX"OX) and (overrightarrowY"OY) represent the co-ordinate axes. The ray (overrightarrowOX) istaken as positive x-axis. So, any distance along (overrightarrowOX) will be taken as positiveand the ray (overrightarrowOX") is taken as negative x-axis. So, any distance move along (overrightarrowOX")will be taken as negative.

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Similarly, ray (overrightarrowOY) taken as positive y-axis. So, the distancemoved along (overrightarrowOY) will be taken as positive and (overrightarrowOY") is taken as negative y-axis.So, the distance moved along (overrightarrowOY") will be taken as negative.

So, In Quadrant I,x > 0, y > 0 The graph will help us tounderstand the convention of the signs of coordinates. (i) The co-ordinates of any point lies in the first quadranthave both the abscissa and ordinate are positive i.e. (+, +).

(ii) The co-ordinates of any point lies in the secondquadrant have the abscissa negative and ordinate positive i.e. (-, +).

(iii) The co-ordinates of any point lies in the thirdquadrant have both the abscissa and ordinate are negative i.e. (-, -).

(iv) The co-ordinates of any point lies in the fourthquadrant have the abscissa positive and ordinate negative i.e. (+, -).

Related Concepts:

● Coordinate Graph

● Ordered pair of a Coordinate System

● Plot Ordered Pairs

● Coordinates of a Point

● Find the Coordinates 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