Answer:
The slope of the line is -3
Step-by-step explanation:
I chose the points (-2,3) and (0,-3)
The slope formula: m=
==>
==>
= 
Our final answer is -3.
Hope that helps!
It is the first one, the second one, and the fourth one.
Hope this helps ;)
Answer:
x+y=-8
Step-by-step explanation:
y-x=4
x=3y
y-3y=4
x=3y
-2y=4
x=3y
y=4/(-2)
x=3y
y=-2
x=3*(-2)
x=-6, y=-2 then
x+y=-6-2=-8