Unit 5 Test Review

Front

Write the following solution in set builder notation: x ≥ -2

Back

{ x | x ≥ -2 }

Front

Write the set of numbers in set-builder notation: (22, 98]

Back

{ x | 22 < x ≤ 98 }

Front

What symbols do you use with infinity?

Back

( )

Front

Which ordered pair makes the inequality 2x + 4y > 600 true?

Back

(150, 100)

Front

Give the solution set for: -13 < 2x + 5 < 15

Back

-9 < x < 5

Front

Define set builder notation.

Back

A notation used to describe a set by stating the properties that its members must satisfy.

Front

What is the difference between open and closed intervals?

Back

Open intervals do not include endpoints (e.g., (a, b)), while closed intervals do include endpoints (e.g., [a, b]).

Front

How do you represent the solution to an inequality graphically?

Back

By using a number line with open or closed circles to indicate whether endpoints are included.

Front

What does the symbol '∪' represent in set theory?

Back

The union of two sets, which includes all elements from both sets.

Front

What does the symbol '∩' represent in set theory?

Back

The intersection of two sets, which includes only the elements that are in both sets.