Answer:
y = -(1/3)x -2
Explanation:
For each horizontal "run" of 3 units, the "rise" of the line is -1 unit. Hence the slope is ...
rise/run = -1/3
The y-intercept is where the line crosses the y-axis, at y = -2. So, the slope-intercept form of the equation of the line is ...
y = (slope)·x + (y-intercept)
y = -1/3x -2