Choose which group of sets the following number belongs to. Be sure to account for ALL sets.
Question content area bottom
-1
A.integers comma rational numbers comma real numbers
C.whole numbers comma integers comma irrational numbers comma natural numbers comma real numbers
D.integers comma natural numbers comma real numbers
The correct answer is B. integers, rational numbers, real numbers
The number -1 belongs to the following sets:
A. Integers: Integers are the set of whole numbers and their negatives. -1 is a negative whole number, so it is an integer.
C. Irrational numbers: Irrational numbers are numbers that cannot be expressed as a ratio of two integers. -1 is not an irrational number since it can be expressed as -1/1, which is a ratio of two integers.
D. Natural numbers: Natural numbers are the set of positive whole numbers. -1 is not a natural number since it is negative.
Therefore, the correct answer is A. Integers, Rational numbers, and Real numbers.