Absolute Value Inequalities

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•
Mathematics
•
8th - 12th Grade
•
Hard
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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 an absolute value inequality of the form |x| < a?
Back
To solve |x| < a, split it into two inequalities: -a < x < a.
3.
FLASHCARD QUESTION
Front
How do you solve an absolute value inequality of the form |x| > a?
Back
To solve |x| > a, split it into two inequalities: x < -a or x > a.
4.
FLASHCARD QUESTION
Front
What does the inequality |x - 4| < -3 represent?
Back
This inequality has no solution because absolute values cannot be negative.
5.
FLASHCARD QUESTION
Front
What is the first step in solving |2x + 7| - 7 < -4?
Back
Get the absolute value alone by adding 7 to both sides.
6.
FLASHCARD QUESTION
Front
What does the solution x < -3 and x > -4 represent?
Back
This represents a range of values for x that satisfy the inequality.
7.
FLASHCARD QUESTION
Front
What is the solution to |x + 3| > 8?
Back
x > 5 or x < -11.
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