Which of the tables represents a function?



Table P

Input Output

6 3

1 2

6 7

Table Q

Input Output

5 1

7 8

5 6

Table R

Input Output

2 5

6 7

9 8

Table S

Input Output

3 6

4 7

4 5

ATable P

b)Table Q

c)Table R

d)Table S