Question

Which one is functions and non function??

Type the letters in order


please help me!!!!!​

Answer 1

2, 3, and 7 are not function

The rest are

Explanation:

In a function every X has one and only one y

2 is not a function because X=5 has 2 different y's

3 is not a function because X=2 has 2 different Y's

7 is not a function because X=b has 2 different Y's