What does it mean for a set to be "closed"?(1 point)

Responses

Members of a closed set cannot be added, subtracted, multiplied, or divided.
Members of a closed set cannot be added, subtracted, multiplied, or divided.

The set has a finite number of members, as opposed to being infinitely large.
The set has a finite number of members, as opposed to being infinitely large.

An expression belonging to a closed set cannot be used to create an expression that is not of that set.
An expression belonging to a closed set cannot be used to create an expression that is not of that set.

An operation performed on members of that set will result in a member of the same set.

1 answer

The correct definition of a "closed" set in the context of mathematics is:

An operation performed on members of that set will result in a member of the same set.

This means that when you apply a specific operation (such as addition, subtraction, multiplication, or division) to the members of the set, the result is still a member of that set. For instance, the set of integers is closed under addition because the sum of any two integers is still an integer.