. Use x as the input and y as the output.

Column A

1.

To get the output, take the input and multiply it by 3.:

To get the output, take the input and multiply it by 3.

2.

To get the output, add 4 to the input and multiply the result by 7.:

To get the output, add 4 to the input and multiply the result by 7.

3.

To get the output, subtract 10 from the input.:

To get the output, subtract 10 from the input.

4.

To get the output, multiply the input by 4 and then add 7.:

To get the output, multiply the input by 4 and then add 7.

Column B

a. y = 7(x+4)

b. y = 3x

c. y = 4x+7

d. y = x-10