d) -2
Step-by-step explanation:
Well, we see the slope is negative so I didn't consider it to be "a" ,"b","c" because those have postive slope. So I focused on "d".
Slope is rise/run. Rise as in up and down, Run as in left or right.
d) "D" actually means to go down 2 and right one. I tried it out. I started at (-1,0) (the y intercept), and went down 2 and 1 right. I was now at the point of (-3,1).
When looking at the graph, I'm pretty sure I see that the graph is crossing through the points of (-3,1)
Hope this helps