Determine If Its a Function

The following mapping is​ (a)   because ​ ​ (b)   .

• a function

• each input maps to exactly one output.

• not a function

• both a function and one-to-one

• each output maps to exactly one input

• neither the x's or y's repeat

The following mapping is​ ​ (a)   ​ because ​ ​​ ​ ​ (b)   .

• not a function

• an input maps to more than one output

• each output maps to exactly one input

• a function

• each input maps to exactly one output.

• both a function and one-to-one

Does the following represent y as a function of x? ​ ​ (a)  

• No

• Yes

Is this graph a function or not a function? 

• Function

• Not a Function

Is this graph a function or not a function? 

• Function

• Not a Function

Is this graph a function or not a function? 

• Function 

• Not a Function 

Is this graph a function or not 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

• Function
• Not a Function

Is this mapping a function or not a function? 

• Function

• Not a Function