Absolute Value Equations and Inequalities

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the definition of absolute value?
Back
The absolute value of a number is its distance from zero on the number line, regardless of direction. It is denoted as |x|.
2.
FLASHCARD QUESTION
Front
How do you solve the absolute value equation |x| = a?
Back
To solve |x| = a, you set up two equations: x = a and x = -a.
3.
FLASHCARD QUESTION
Front
What is the solution to the inequality |x| < a?
Back
The solution to |x| < a is -a < x < a.
4.
FLASHCARD QUESTION
Front
What is the solution to the inequality |x| > a?
Back
The solution to |x| > a is x < -a or x > a.
5.
FLASHCARD QUESTION
Front
What does an open circle represent on a number line?
Back
An open circle represents that the number is not included in the solution set, used for < and >.
6.
FLASHCARD QUESTION
Front
What does a closed circle represent on a number line?
Back
A closed circle represents that the number is included in the solution set, used for ≤ and ≥.
7.
FLASHCARD QUESTION
Front
Solve for x: |2x - 3| = 5.
Back
x = 4 or x = -1.
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