Functions Review

• Function
• Not a Function

• Function
• Not a Function

• Function
• Not a Function

• Function
• 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.

What is the most accurate definition of function?

• Has inputs and outputs

• Every input has only ONE output

• Inputs have different outputs every time

• x-values and y-values

Answer explanation

Think about a vending machine: inputs are "buttons", outputs are what the vending machine gives you

 

Is this graph a function or not a function? 

• Function

• Non Function

What is a test that is used to check if the graph is function or not?

• Multiple Choice

• Vertical Line Test

• Horizontal Line Test

• None of the above

 

Is this graph a function or not a function? 

• Function

• Non Function

. 

Is this graph a function or not a function? 

• Function

• Non Function