Respuesta :

This problem is about absolute value.

Four important notes to remember are:

• Absolute value is the modulus of a number, that is, includes only the number without any signs.

• The absolute value of a number can be positive, when the number is positive, that is

[tex]|x|=x[/tex]

• The absolute value can be negative if the number is negative

[tex]|x|=-x[/tex]

• The absolute value of zero is zero.

[tex]|0|=0[/tex]

There you have it, those are 4 important notes to keep in mind about absolute value.

On the other hand, "the additive" would refer to a wide variety of subjects, so, there's a word missing to complete the question.