set notation

What does this symbol (∉) represent in set notation?

• Union

• Not an element of

• An element of

• Subset

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

• Universal Set

• Empty (or Null) Set

• Disjointed Set

• Complement of a Set

Fill in the blank space with  $\in$  or  $\notin$  to make the following statement true.

b __ {m, a, t, h, e, m, a, t, i, c, s}

•  $\in$  

•  $\notin$  

Fill in the blank space with  $\in$  or  $\notin$  to make the following statement true.

0 ____ {10, 20, 30, 40, 50}

• $\in$

• $\notin$

Fill in the blank space with  $\in$  or  $\notin$  to make the following statement true.

r  _   {p, q, r, s}

•  $\in$  

•  $\notin$  

If P = {a, e, i, o, u} then choose which are correct .

• a ∈ P

• b ∈ P

• i ∈ P

• g ∉ P

• True

• False

• No enough information to tell

• Sometimes true

• True

• False

• Not enough information to tell

• Sometimes true

What are the elements in set B only?

• { }

• { 7, 8, 9 }

• { 1, 2, 3 }

• {4, 5, 6 }

What is the same about cars A and B?

• Airbags

• Sedan

• Gas Powered

• 40 miles per gallon