Insofar as to the work original to me,

This work has been released into the public domain by its author, Kbolino. This applies worldwide. In some countries this may not be legally possible; if so: Kbolino grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Derivative works of this file:

• Cartesian coordinate system (comma).svg
• CartesianPlane.svg

Older versions by 345Kaionen.wikipedia, licensed under:

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue

	This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
	Attribution: 345Kai
	You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
	This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue

Originally from en.wikipedia; description page is (was) here

• 01:33, 19 April 2006 345Kai 770x790 (8,555 bytes)
• 01:31, 19 April 2006 345Kai 770x790 (8,555 bytes)
• 00:36, 19 April 2006 345Kai 770x790 (8,409 bytes)
• 00:30, 19 April 2006 345Kai 780x790 (8,556 bytes)