m = 2
<u>Step-by-step explanation:</u>
Step 1:
m = 
Here, 

Step 2:
m = 
Answer: 
<u>Step-by-step explanation:</u>
The constant of proportionality is y = kx. Solve the given equation for "y" to find k-value in front of "x".
18y = 2x



-18,-5,-1,1,1,2,8 Hope this helps!
Answer:
don't know
Step-by-step explanation: