Compound Inequalities and Interval Notation

Flashcard
•
Mathematics
•
9th - 10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a compound inequality?
Back
A compound inequality is an inequality that combines two or more simple inequalities using the words 'and' or 'or'. For example, x > 2 and x < 5.
2.
FLASHCARD QUESTION
Front
What does interval notation represent?
Back
Interval notation is a way of writing subsets of the real number line. It uses parentheses and brackets to indicate whether endpoints are included or excluded.
3.
FLASHCARD QUESTION
Front
What does the bracket [ ] indicate in interval notation?
Back
The bracket [ ] indicates that the endpoint is included in the interval.
4.
FLASHCARD QUESTION
Front
What does the parenthesis ( ) indicate in interval notation?
Back
The parenthesis ( ) indicates that the endpoint is not included in the interval.
5.
FLASHCARD QUESTION
Front
How would you write the inequality x ≥ 3 in interval notation?
Back
In interval notation, x ≥ 3 is written as [3, ∞).
6.
FLASHCARD QUESTION
Front
How would you write the inequality x < -1 in interval notation?
Back
In interval notation, x < -1 is written as (-∞, -1).
7.
FLASHCARD QUESTION
Front
What is the solution to the compound inequality 2 < x < 5?
Back
The solution is the interval (2, 5).
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