A- y=-2x-4
B- y=2x+4
C- y=-2x+4
D- y= 2x-4

Answer:
A. y=-2x-4
Step-by-step explanation:
The slope is negative when the line is going down from up.
Options B and D are wrong.
The y-intercept is (0, -4) as shown in the graph.
Option C is wrong.
y = mx + b
y = -2x - 4