Flashcardizz Review Day 3

Front

What is set-builder notation?

Back

Set-builder notation is a mathematical notation for describing a set by stating the properties that its members must satisfy.

Front

How do you express the interval (22, 98] in set-builder notation?

Back

{x ∣ 22 < x ≤ 98 }

Front

What does the symbol '≤' mean in mathematics?

Back

The symbol '≤' means 'less than or equal to'.

Front

What does the symbol '∞' represent?

Back

The symbol '∞' represents infinity, which is a concept in mathematics that describes something without any limit.

Front

How do you express the interval (−∞, 5] in set-builder notation?

Back

{x ∣ x ≤ 5 }

Front

What does the union symbol '∪' mean in set theory?

Back

The union symbol '∪' represents the combination of two sets, including all elements from both sets.

Front

How do you express the interval [14, ∞) in set-builder notation?

Back

{x ∣ x ≥ 14 }

Front

What is the difference between open and closed intervals?

Back

An open interval does not include its endpoints, while a closed interval includes its endpoints.

Front

How do you express the set of all numbers greater than 14 in set-builder notation?

Back

{x ∣ x > 14 }

Front

What does the symbol '>' mean in mathematics?

Back

The symbol '>' means 'greater than'.