What are the steps to solving this problem???

- Which could be linear functions? Explain.-

Relation 1:

x = 1 2 3 3 4

y= 3 4 5 6 7

Relation 2:

x= 5 5 5 5 5

y= 27 24 21 18 15

Relation 3:

x= 0 1 2 3 4

y= 50 45 40 35 30

Relation 4:

x= 3 4 5 6 7

y= 11 13 17 25 40