Image: Graph of non-injective, non-surjective function (red) and of bijective function (green)
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Description: Shows (a part of) the graph of the function y=x2 (red) which is neither injective (as it maps e.g. both -5 and +5 to 25) nor surjective (as it doesn't map any real number to e.g. -14), and of the function y=2x+20 (green) which is both injective and surjective (hence bijective)
Title: Graph of non-injective, non-surjective function (red) and of bijective function (green)
Credit: Own work
Author: Jochen Burghardt
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes
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