Answer:
I believe the answer would be y = -(1)x - 2
Step-by-step explanation:
First, you look at where the line appears to cross the x-axis. In this problem, it appears to cross at just about -1. Then, you look at where the line crosses the y-axis. It does that at -2 in this problem.
Then, you just plug those numbers into the y = mx + b form. Alternatively, you could just write -x instead of -1x. I just put the -1 to show you.
Edit: If -1x is wrong, you may want to try -0.5x. It's pretty ambiguous as to where the line actually crosses the x axis.