Algebra 2 1.1 Note Test Flashcards
Fill in the blank with the correct vocab word.
In mathematics, a collection of objects is a _ , which is represented by braces. { }
Set.
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_ of a set are the members of that set.
Elements.
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A set with no elements is called the _ _ , which is represented as 0 or { }.
Two words
Empty set.
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If all the members of set A are also members of set B, then A is a _ of B.
Subset.
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Many subsets of the real numbers can be represented by _ on the real number line.
Intervals.
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_ _ uses brackets [ ] and parenthesis ( ).
Two words.
Interval notation.
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Let a and b be two real numbers such that a < b. Then a and b can be endpoints of a _ _.
Two words.
Bounded interval.
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An inteval that does not have two endpints is an _ _.
Two words.
Unbounded interval.
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[ , ] , closed circle , less than or equal to , greater than or equal to.
Two words
Included endpoints.
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( , ) , open circle , greater than , less than.
Two words
Excluded endpoints.
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_ _ used symbols to define a set in terms of the properties of the members of the set.
Two words
Set-builder notation.
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The symbol ∈ denotes membership in a set, or _ _ _ _.
Four words
Element of a set.
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R:
Q:
Z:
W:
N:
R: Real numbers
Q: Rational numbers
Z: Integers
W: Whole numbers
N: Natural numbers
