What is the opposite of the opposite of -1/2 on the number line?

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Answer 1 · 2017-04-09T11:25:35

#-1/2#

The 'opposite' of #" "-1/2" "# is #" "+1/2#

The 'opposite of #" "+1/2" "# is #" "-1/2#

So you are back where you started.

Mathematically this is like:

#color(green)((-1)xx(-1))xx(-1/2)#

The #color(green)((-1)xx(-1))=color(magenta)(+1)#

Then the #(color(magenta)(+1))xx(-1/2) = -1/2#

Tony B