z=18
3z+4+2z-4+90=180
5z+4-4+90=180
5z+90=180
5z=90
Answer:
-1.25
Step-by-step explanation:
Your points one the graph are (-4,4) and (0,-1)
Formula for slope is y1-y2/x1-x2
4--1/-4-0
5/-4