Functions Review

Does the graph below represent a function?

• Function

• Not a Function

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 mapping a function?

• Function

• Not a Function

Which graph does NOT pass the vertical line test?

• Graph 1

• Graph 2

• Graph 3

• Graph 4

How is f(x) read?

• function notation

• f times x

• f of x

• replaces y

If a question asks you to find f(2), what does that mean?

• Let x = 2

• Let y = 2

What is f(0) in this function?

• -1

• 2

• 4

• -5

What is the domain of a function?

• The set of all x-values

• The set of all y-values

All of the y-values or outputs are called what?

• Domain

• Function

• Relation

• Range

What is the domain of the function?

• 
  

  $\left(-\infty\ ,\ 5\right)$

• $\left(-\infty\ ,\ 5\right]$

• $\left[\ 5\ ,\ -\infty\ \right)$

• $\left(-4,\ 5\right]$