Math Function or Not a Function

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

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

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

Is this mapping a function or not a function? 

• Function

• Not a Function 

Is the relation a function?

• yes, it is a function

• no, it is not a function

• not enough information to determine

Is this relation a function?

• Yes, because the x-value 1 has two y-values

• Yes, because each x-value has only one y-value

• No, because the x-value 1 has two y-values

• No, because each x-value has only one y-value

Which of the following is NOT a function?

• (1, 1) (2, 2)
  (3, 3) (4, 4)

• (4, 5) (1, 5)
  (3, 8) (4, 6)

• (10, 2) (-10, 2)
  (6, 4) (5, 3)

• (6, 1) (5, 1)
  (4, 1) (3, 1)

Which of the following is a function?

• (5, 0) (5, 2) (2, 0)

• (4, -2) (3, 0) (4, 2)

• (1, 0) (2, -1) (3, -1)

• (2, -2) (6, -2) (6, 2)

What is the definition of function?

• Has inputs and outputs

• Every input has only ONE output

• Inputs have different outputs every time

• x-values and y-values

Is this table a function or not a function? 

• Function

• Not a Function

All of the x values or inputs are called what?

• Domain

• Range

• Relation

• Function

• Function

• Not a Function