Representing functions

Which of these functions does this mapping diagram show?

• 
• 

What is the output value of this function machine when −3 is the input value?

 

• 6

• -1

• 9

Select the output value of this function machine.

What is the output value of this function machine when −2 is the input value?

• -6

• 6

• -8

• 8

Select the equation of this function machine.

What is the input value of this function machine when 8 is the output value?

 

• 3

• 2

• 1

• 4

What is the output value of this function machine when −3 is the input value?

• 13

• 9

• 14

• 15

What is the output value of this function machine when 2 is the input value?

• -2

• 2

• -1

• 1

Select the equation of this function machine.

What is the output value of this function machine when 3 is the input value?

• 9

• 4

• 36

• 5