Relations & Functions

All of the y values or outputs are called what?

• Domain
• Range
• Relation
• Function

All of the x values or inputs are called what?

• Domain
• Range
• Relation
• Function

Is this table a function or not a function? 

*Hint: Do any of the domain (x) values repeat?

If you answer no, then it is a Function.

If you answer yes, then it is NOT a Function.

• Function
• Not a Function

Is this graph a function or not a function? 

*Hint: Use the Vertical Line Test (pencil test).

• Function
• Not a Function

Is this graph a function or not a function? 

• Function
• Not a Function

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

• D: {1, -3, -4,}
  R: {0, 1, 2, -4}
• D:{-4, 0, 1, 2}
  R:{-4, -3, 1}
• D:{0, 1, 2, 3, 4}
  R:{1, -3, -4}

If f(2) = 4, what is the ordered pair for the function?

• (4, 2)

• (2, 4)

• (0, 4)

• (2, 0)

A relation where every input yields one and only one output is called what?

• Relation
• Linear
• Exponential
• Function

List the ordered pairs

• (1,3), (2,6), (3,9), (4,12)

• (3,1), (6,2), (9,3), (12,4)

• Input and Output

• Output and Input

f(x) is the same thing as ______.

• y
• x
• input
• an equation