Opposites

Numerical opposites are defined as numbers that are equidistant from zero on the number line.  For example, +3 and -3 are both three units from zero, +3 being 3 units right of zero and -3 being 3 units left of zero.  Other examples of opposites are +1/2 and -1/2 ;  +0.77 and -0.77 ;