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Coordinate Geometry Variation
Coordinate Geometry Va  
Dear Prof Azeem

As per the attached image, Will you consider this Coordinate Geometry
Variation as correct or incorrect ?.

The Four Quadrants Positions are changed along with the positive and negative numbers on the x and y axis.

Awaiting your reply,

Thanks & Regards,
Prashant S Akerkar

Hi Prashant,

This variation in the illustration is a 180-degree rotation of the conventional Cartesian plane.  While not strictly incorrect, it may be confusing as it is easier to associate negative numbers with being on the left or bottom.  However, in a scenario is which negative values actually indicate a rise in the metric of interest, such a variation can be useful.

Thanks for asking,


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Azeem Hussain


I welcome your questions on algebra, 2D and 3D geometry, parabolic functions and conic sections, and any other mathematical queries you may have.


4 years as a drop-in and by-appointment tutor at Champlain College. Private tutor for dozens of clients over the past 8 years.

CALPHAD: Computer Coupling of Phase Diagrams and Thermochemistry

Bachelor of Science, Major Mathematics and Major Economics, McGill University, 2014. Diploma of Collegiate Studies; Pure and Applied Science, Champlain College Saint-Lambert, 2010.

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