y=-1x+1 is the correct answer because you take the two points and go y2-y1/x2-x1, then one you figure that out you take y=mx+b and input your values (you can choose either point) so your work should look like: -4-4/5-3=-8/8=-1. -4=-1 (5)+b
-4= -5+b
+5. +5
1=b
y=-1x+1
