Integer
That is called the set of "integers".
The two sets are the same: the set of integers.
The set of integers I. I = {..., -3, -2, -1, 0, 1, 2, 3, ...}
Yes, parallel and perpendicular are opposites.
The set of all whole numbers and their opposites are
They are called rational numbers. The set of rational numbers contains the opposites of its members.
All numbers have opposites that are the same as their absolute values.
The set of numbers that include the natural numbers, their opposites and 0 is called the set of integers.
The set of integers (ℤ) is the set of the positive whole numbers and their additive opposites (the negative whole numbers).
integer
describe the whole numbers
The answer depends on what is meant by "their opposites". If you mean additive opposites then the set is of all non-zero integers.
rational
Integer
A zero pair
These are the integers.