Proportions, Absolute Value, Inequalities Review
Flashcard
•
Mathematics
•
9th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a proportion?
Back
A proportion is an equation that states that two ratios are equal.
2.
FLASHCARD QUESTION
Front
How do you solve a proportion?
Back
To solve a proportion, cross-multiply the terms and then solve for the variable.
3.
FLASHCARD QUESTION
Front
What does absolute value represent?
Back
Absolute value represents the distance of a number from zero on the number line, regardless of direction.
4.
FLASHCARD QUESTION
Front
How do you solve an absolute value equation like |x + 1| = 4?
Back
Set up two equations: x + 1 = 4 and x + 1 = -4.
5.
FLASHCARD QUESTION
Front
What is an inequality?
Back
An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, or not equal to the other.
6.
FLASHCARD QUESTION
Front
What symbols are used for closed dot graphs in inequalities?
Back
Closed dot graphs are used for the symbols ≤ and ≥.
7.
FLASHCARD QUESTION
Front
What does the inequality x < -4 represent on a number line?
Back
It represents all numbers less than -4, with an open circle at -4.
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