Answer:
M = -4
Step-by-step explanation:
When you look at the line from left to right you will see that the line is going down so therefore your slope will be negative. Pick 2 points on the line and use rise over run or y2 - y1 / x2 - x1. I picked the points (0,2) and (1, -2). I went down 4 so the numerator will be -4 and then I went to the right once so it's a positive one. -4 over positive 1 gives -4 as the slope.
If you wanted to write that in an equation, use y = mx + b and you will get y = -4x + 2
