Geometry Unit 1 - 1.

The number of subsets that can be created from the set {1, 2, 3} is: 3 6 7 8

8

Select the finite sets. All whole numbers All natural numbers less than 100,000. All letters of the alphabet. All odd numbers All the world's population ∅

All natural numbers less than 100,000. All letters of the alphabet. All odd numbers All the world's population

Complement of a set

The elements in the universe that are not in the set

List the following elements in proper set notation. Place the elements in numerical order within the set. 0 1 123 4 34

{0, 1, 4, 34, 123}

Give an example of an infinite set.

{1, 2, 3, 4, ...}

Which of the following is a subset of {1, 2, 3}? {0} {0, 1} {1, 2, 3} {1, 2, 3, 4}

{1, 2, 3}

Which of the following is correct set notation? (1,2,3) 1,2,3 {1,2,3} none of the above

{1,2,3}

List the set of all even numbers between 2 and 10, inclusive.

{2, 4, 6, 8, 10}

Which is a subset of {1, 2, 4, 5, 6}? {0, 1, 2} {3, 4} {5, 6, 7} {2, 6}

{2, 6}

Which of the following is proper notation to describe the set of all letters in the alphabet? {a, b, c, . . ., z} (a, b, c, etc.) a through z none of the above

{a, b, c, . . ., z}

The empty set (or null set) is a subset of _____ set(s) no other every some the infinite

every

Disjoint sets

Sets that have no common elements

The mathematical expression 2 ∈ V means: 2 is an element of set W 2 is a subset of set W 2 is an element of set V none of the above

2 is an element of set V

The mathematical expression 9 ∈ T means: 9 union T 9 intersection T 9 is an element of T 9 is not an element of T

9 is an element of T

The mathematical expression 9 ∉ T means: 9 union T 9 intersection T 9 is an element of T 9 is not an element of T

9 is not an element of T

Set

A collection or group of objects

A ⊆ B means: A is an element of B B is a subset of A B is an element of B A is a subset of B A is a subset of B and B is a subset of A

A is a subset of B

Subset

A set that contains only elements found in another set

Empty Set

Set that has no elements; sometimes called the null set

Proper subset

A subset that does not contain every element in another set

Given the two sets: A = {1, 2, 3} B = {3, 2, 1} Which of the following is a true statement? 4 ∈ B A ⊆ B A is an infinite set ∅ ∉ B

A ⊆ B

Element

An object that belongs to a set; sometimes the word "member" is used

Finite set

Any set whose elements can be counted

Infinite set

Any set whose elements cannot be counted

Which of the following is a subset of {1, 3, 5, 7, 9}? ∅ {1, 2, 3} {5, 6, 7} integers between 1 and 9

∅

The set of lessons in this geometry course is: finite infinite

finite

The set of counting numbers is: finite infinite

infinite

Which of the following is an infinite set? the set of lessons in this course the set of even numbers from 0 to 10 10 billion the set of integers the null set none of the above

the set of integers