Answer:
y=(-1/4)x -6
Explanation:
you have to use the equation y=mx+b where
m is the slope =rise /run and is negative because the line goes down from left to right m= -1/4 (take two points on the graph to see the change in y and x)
b is the y-intercept and from graph we see is -6
so the equation is y=(-1/4)x -6