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Sets - Warp Up
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"Algebra for College Students" 4th edition by Mark Dugopolski The Real Numbers - Sets page 6
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Some examples from this set of practice questions
1.
a collection of objects
Answer: set
2.
the objects or numbers in a set
Answer: elements or members
3.
to describe sets with a convenient notation, we use _____
Answer: braces { }
4.
a set that has a fixed number of elements
Answer: finite set
5.
a set without a fixed number of elements such as the natural numbers
Answer: infinite set
6.
when listing the elements of a set, we use a series of __________ to indicate a continuing pattern
Answer: three dots (. . .)
7.
the set of natural numbers is written as
Answer: N = {1, 2, 3, . . .}
8.
the set of natural numbers between 4 and 40
Answer: N = {5, 6, 7, 8, . . . , 39}
9.
another method of describing sets, in this notation we use a variable to represent the numbers in the set
Answer: set-builder notation
10.
a letter that is used to stand for numbers
Answer: variables
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