Which tables represent constant functions?

A. x y

2 - 1

2 0

2 1

B. x y

2 - 3

4 - 7

6 - 11

C. x y

2 3

4 3

6 3

D. x y

1 3

2 12

3 27

E. x y

1 - 1

2 - 1

3 - 1

The correct option is C and E.

Step-by-step explanation:

Constant functions is the function those output value (y) remains same for any input values (x).

Now consider the provided options.

Option A, B and D has different output value (y) for different the different input values (x)

Now consider the option C and E.

Option C and E has same output value (y) for different the different input values (x).

Therefore, the correct option is C and E.

C and E repr. constant functions.

Step-by-step explanation:

C and E represent constant functions. One can tell immediately by the fact that y remains the same even when x changes.