genmath 1

A set of ordered pairs is called what?

• the domain

• a function

• a relation

• the range

Which relation does the mapping show?

• {(0, 1), (1, 2),(3, 4)}

• {(0, 1), (1, 2), (2, 2), (3, 4)}

• {(1, 0), (2, 1), (2, 2), (4, 3)}

• {(1, 0), (2, 1), (4, 3)}

Is the relation shown a function?

• No, because the x-value 11 is paired with 5 and 8.

• Yes, because each x-value has only one y-value paired with it.

Does the graph represent a function?

• Yes

• No

Which mapping diagram is not a function?

• 
• 
• 
• 

Identify all of the functions

• 
• 
• 
• 
• 

What is the domain of a relation?

• the set of all x-values

• the set of all y-values

What is the domain of the relation shown in the table?

• {12}

• {3, 9, 15, 16}

• {6, 18}

• {13}

What is the domain?

• {-2, -1, 0, 1, 8}

• {-2, -1, 0, 1, 3, 5, 7, 8, 9}

• {3, 5, 7 , 9, 0}

• {-2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

What is the Domain?

• All real numbers

• x = 4

• x > 3

• x ≥ 3