Into Relations and Functions

The mapping shown is:

• Not a function, because there are letters.

• Not a function, because two different numbers go to C.

• A function, because none of the x values go to more than one y value.

• A function, because the numbers are in order.

A relation where every input yields one and only one output is called what?

• Relation

• Linear

• Exponential

• Function

Which relation is NOT a function?

• {(1,-5), (3,1), (-5,4), (4,-2)}

• {(2,7), (3,7), (4,7), (5,8)}

• {(1,-5), (-1,6), (1,5), (6,-3)}

• {(3,-2), (5,-6), (7,7), (8,8)}

The graph shown is:

• linear function but not proportional.

• function, but not linear or proportional.

• proportional function.

• Not a function, linear or proportional.

Which relation shows a function?

• A

• B

• C

• D

Select all the relations that represent a function

Which relation shows a function?

• A

• B

• C

• D

Which relation shows a function?

• A

• B

• C

• D

Which relation shows a function?

• A

• B

• C

• D

This is a one-to-many relation. Is it a function??

• Function

• Not a Function