Functions

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

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definition of function

Is this mapping a function or not a function?

• Function

• Not a Function

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mapping diagrams

Which of these is NOT the same?

• Range

• Input

• Dependent Value

• Y-Value

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 this graph a function or not a function?

• Function

• Not a Function

Which set of values is a function?

• { (9,5) (10,5) (9,-5) (10,-5) }

• { (3,4) (4,-3) (7,4) (3, 8) }

• { (6,-5) (7, -3) (8, -1) (9, 1) }

• { (2, -2) (5, 9) (5, -7) (1, 4) }

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

Which ordered pair could you add to the following list of points to create a function : { (3, 5) (4, 9) (2, 5) ,__?__ }

• (3, 7)

• (4, 1)

• (1, 9)

• (2, 6)

Is this table a function or not a function?

• Function

• Not a Function