There are two number lines, each split into three sections labeled x, y, and z.  The first number line has sections x and y in green and z in orange.  The second number line has section x in orange and y and z in green.

Image by Stephan Kulla via Wikimedia Commons

Which of the following properties does the image above represent?

Choose one answer

Type a concept, like “slope” or “photosynthesis”.

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