Question

Select the sets that are not functions.

(answer choices are in picture)

Answer 1

The answer is D and E

Explanation:

- D is not a function because x in (x,y) coordinate sets, 1 is being repeated over and in this case 1 is repeated 4 times.

- E is not a function because x in (x,y) coordinate sets, 6 has been repeated 2 times; (6,2), and (6, -1).

Answer 2

C is not a function

Explanation: