Answer:
y=(-1/2)x-1
Step-by-step explanation:
With a slope of -1/2, we know that the m value in y=mx+b is -1/2
y=(-1/2)x+b
To get the b value, we substitute y and x with the coordinates given.
2=(-1/2)-6+b
2=3+b
b=-1
Now we have the b value, we put the equation back together
y=(-1/2)x-1