Is It a Function Tables and Mappings

Which of the following represents a function?

• <(1,2), (1,3), (1,4), (1,5)>

• <(1,2), (2,3), (3,4), (4,5)>

• <(1,2), (3,4), (3,5), (6,7)>

• <(1,2), (3,4), (5,6), (5,8)>

Which of the tables represents a function?

• Table A

• Table B

• Both Tables A & B represent functions

• Neither table represents a function

Which mapping represents a function?

• Mapping A

• Mapping B

• Both Mapping A and Mapping B represent functions

• Neither Mapping represents a function

What value of m would result in this table representing a function?

• 3

• 6

• 2

• Any value of m would make this a function.

Is this a function or not a function?

• Function

• Not a function

Is this mapping a function or not a function? 

• Function

• Not a Function

Is this mapping a function or not a function? 

• Function

• Not a Function 

Choose the correct answer from each drop down menu to complete the statement.

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

• 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