Answer:
y=-2x-4
Step-by-step explanation:
use the equation y=mx+b, m is the slope (rise over run), and b is the y intercept (where the line crosses the y-axis). So, the rise is 2, and the run is -1, since it's moving to the left, so the slope is -2. The graph intersects the y-axis at the spot -4, so b=-4
