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

You are watching: Abscissa and ordinate have the same sign

Similarly, ray (overrightarrowOY) taken as positive y-axis. So, the distancerelocated along (overrightarrowOY) will certainly be taken as positive and also (overrightarrowOY") is taken as negative y-axis.So, the distance relocated along (overrightarrowOY") will be taken as negative.

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

(ii) The co-ordinates of any type of allude lies in the secondquadrant have actually the abscissan adverse and also ordinate positive i.e. (-, +).

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

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

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● Coordinate Graph

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● Plot Points on Co-ordinate Graph

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