Tables, Graphs, Mappings

Which of these tables represents a function?

• W

• Y

• Z

• X

Which of these mappings is a function?

• W

• Y

• X

• Z

Using the vertical line test, determine if the graph above shows a relation, a function, both a relation and a function, or neither a relation or a function.

• Neither a relation or a function

• Relation only

• Both a relation and a function

• Function only

• A

• B

• C

• D

• A

• B

• C

• D

Which of the following is a function?

• Mapping A

• Mapping B

• Table C

• Table D

• A

• B

• C

• D

The mapping 

​ (a)  

 y as a function of x, because 

​ (b)  

• does not represent

• represents

• each x-value corresponds to more than one y-value

• each x-value corresponds to exactly one y-value

The mapping 

​ (a)  

 y as a function of x, because 

​ (b)  

• does not represent

• represents

• each x-value corresponds to more than one y-value

• each x-value corresponds to exactly one y-value

Which of the following does NOT represent a function?

• F

• G

• H

• J