Answer:
y equals 3/2 - 1/2 x.......
Answer:
C. 
Step-by-step explanation:
Lets plug in -2 into each of these equation to see which one gives us the solution of -6
A. 

B. 

C. 

D. 

As we can see, function C was the only one that gave us the value of -6, so that is our answer.
3.5miles/.5hours
7miles/1hour
7mph
.