Lesson 3.5 - Working With Sets

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Mathematics
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8th - 10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a set in mathematics?
Back
A set is a collection of distinct objects, considered as an object in its own right. Sets are usually denoted by curly braces, e.g., {1, 2, 3}.
2.
FLASHCARD QUESTION
Front
What is roster form in set notation?
Back
Roster form is a way of specifying a set by listing its elements within curly braces, e.g., {1, 2, 3}.
Tags
CCSS.7.EE.B.3
3.
FLASHCARD QUESTION
Front
What is set-builder notation?
Back
Set-builder notation is a shorthand used to describe a set by stating the properties that its members must satisfy, e.g., {x | x > 0}.
4.
FLASHCARD QUESTION
Front
How do you represent the empty set?
Back
The empty set is represented by the symbol ∅ or by the notation {}.
5.
FLASHCARD QUESTION
Front
What is a subset?
Back
A subset is a set that contains only elements from another set. If A is a subset of B, every element of A is also an element of B.
6.
FLASHCARD QUESTION
Front
What is the difference between a proper subset and a subset?
Back
A proper subset is a subset that contains at least one element not in the larger set, while a subset can be equal to the larger set.
7.
FLASHCARD QUESTION
Front
How do you find the number of subsets of a set?
Back
The number of subsets of a set with n elements is 2^n.
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