Question

(I need it right now Ma'am/Sir ASAP, the dealine is 10:40 a.m. Please help me. I need it right now. Thank you very much in advance)

Determine if the tables and graphs below express a direct variation between the variables. If they do, find a constant of variation and equation that defines the relation. Solve the following. Show solution in each number. 

1.  

x 1 2 3 4

y -3 -6 -9 -12

 

2.  

x 7 14 -21 -28

y 3 6 -9 -12

3.  

x -15 10 -20 25

y -3 2 -4 5

4.  

x 2 3 4 5

y 1 2 3 4

5.  

x 16 20 24 28 32

y 12 15 18 21 24

6.  

x 6 8 10 12

y 7 9 11 13