Question

Which relations are functions and which are not functions?


Column A

1. {(2, 2), (4, 4), (6, 6),
(8, 8)}

2. {(0, 3), (3, 5), (5, 6),
(8, 4)}

3. {(1, 2), (3, 3), (4, 8),
(6, 3)}

4. {(3, 4), (5, 2), (5, 6),
(7, 3)}


Column B

A. function
B. not a function

Answer 1

@carlyleukhardt

Answer 2

A.Function

Answer 3

is it 1. a 2. b 3. a & 4. b ?

Answer 4

@carlyleukhardt

Answer 5

For each x, there can only be one y.

Answer 6

Basically go through them and if an x is repeated in each set then it is not a function