[tex]\begin{gathered} \text{green line y =-3x-4} \\ y1=-3\cdot(0)-4 \\ y1=-4 \\ P1(0,-4) \\ y2\text{ =-3(-1)-4} \\ y2=3-4 \\ y2=-1 \\ P2(-1,-1) \\ y3=-3(-2)-4 \\ y3=6-4 \\ P3(-2,2) \\ \text{purple line y=3x+8} \\ y1=3(0)+8 \\ y1=8 \\ P1(0,8) \\ y2=3(-2)+8 \\ y2=-6+8 \\ y2=2 \\ P2(-2,2) \\ y3=3(-\frac{8}{3})+8 \\ y3=-8+8 \\ y3=0 \\ P3(-\frac{8}{3},0) \end{gathered}[/tex]
