Question

Which set of coordinates represents a function

Answer 1

Answer:

2

Step-by-step explanation:

Answer 2

the third set represent a function

For the points to represent a function then for each value of x there can only be one corresponding value of y

sets 1, 2 and 4 do not obey this and have more than one value of y for a given x

set 1

1 → 1, 2, 3, 4, 5

set 2

3 → 3, - 3 and 5 → 5, - 5

set 4

- 1 → - 1, 1 and - 2 → 4, - 4