Answer:
D
Step-by-step explanation:
It is going left so it's negative, and the x moves left by 2 each times it goes down by 1 so its -1/2.
D-It has a slope of -1/2
We can see by looking at the graph, the line moves down 1/2 on the y axis for every 1 on the x axis, confirming this slope.
Good luck!
