Unit 3 - Absolute Value - Review

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•
Mathematics
•
9th - 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 the inequality 0 < x + 7 < 9?
Back
The solution is -7 < x < 2.
3.
FLASHCARD QUESTION
Front
What type of inequality is |x - 2| < 7?
Back
It is an AND compound inequality.
4.
FLASHCARD QUESTION
Front
Write an inequality for the gallons of water needed: 2 gallons minimum, 8 gallons maximum.
Back
2 ≤ x ≤ 8.
5.
FLASHCARD QUESTION
Front
What is the solution to the equation |x - 3| = 0?
Back
The solution is x = 3.
6.
FLASHCARD QUESTION
Front
What does the notation |x| mean?
Back
It represents the absolute value of x.
7.
FLASHCARD QUESTION
Front
How do you express the absolute value equation |x| = a?
Back
It can be expressed as two separate equations: x = a and x = -a.
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