2.1 The Language of Sets

Given that

R = {x : x is a factor of 36 }.

n(R) =

• 6

• 9

• 12

• 15

P={a, b, c, d, e, f, g, h, i, j, k, l,m}

• Roster/List Form

• Universal Form

• Set Builder Notation

• Equivalent Inequalities

What type of set is denoted as either { } or ∅?

• Superset

• Empty (or Null) Set

• Disjointed Set

• Subset

Find n(A) when
A = {14, 16, 18, 20, 22, 24}

• 6
• 12
• 4
• 8

What does this symbol mean?
∅

• Empty set
• Intersection
• Universal set
• Number in set

What does this symbol mean?
∉

• Is not a member of
• Is not an intersection
• Not the universal set
• Empty set

Tags

CCSS.HSS.CP.A.1

What does this symbol mean?
∈

• Is a member of
• Union
• Intersection
• Universal set

The set of yummy treats is a not well-defined set?

• True
• False

The set of cute puppies is a well-defined set?

• True
• False

What is n(A) if A is {1, 2, 3, 5, 7, 8, 9}

• 7

• {1, 2, 3}

• 8

• 6