On a certain function machine, an input of 3 has an output of -6. An input of -2 has an output of 4. An input of 0 has an output
of 0. Which of the following phrases describes the function rule? Multiply the input by -1 and then add 2.
Multiply the input by -2.
Multiply the input by -1 and then subtract 3.
Multiply the input by 2.
