Graph 1:
Slope: -3
X-Intercept: -1
Y-Intercept: -3
Graph 2:
Slope: 2
X-Intercept: 3
Y-Intercept: -6
Graph 3:
Slope: 3/2
X-Intercept: -4
Y-Intercept: 6
Graph 4:
Slope: -2/3
X-Intercept: 3
Y-Intercept: 2
*The picture is a bit blurry so I'm guessing the intervals are going by ones. Sorry if I'm wrong