Which of these graphs represents a function?

first and second

Step-by-step explanation:

the last 2 have angles wich make that value given by several numbers

Step-by-step explanation: Here were given 4 relations in the form of graphs and were asked to determine which one represents a function.

In this situation, we would use what is called the vertical line test.

In other words, if we can draw a vertical line that passes through

more than one point on the graph, then the relation is not a function.

Notice that in this problem, every vertical line draw on a

graph passes through more than 1 point except for W.

So W represents a function.

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction

1. 3.4/4

2. 0.8/7

3. 0.5 x 3

4. 0.9 x 6

5. 10.8

6. 2.35

7. 0.567

8. 9.35

9. 0.02

10. 0.06

11. 0.16

12. 0.42

13. 0.63

14. 5.6

15. 8.1

16. 9.9

17. 0.28

18. 0.48

19. 0.27

20. 0.49

21. 0.45

22. 0.72

23. 0.9

24. 0.88

25. 0.75

26. 0.16

27. 0.328

28. 0.495

29. 0.72

30. 1.068