Step-by-step explanation:
the vertical line test means if there are more than one point on a vertical line then it is not a fuction
i cant answer without seeing the graph but i hope this helps
Answer:
-7/2
y2-y1 / x2-x1
-5-10 / -2-4
-15 / -6
-7 / -2
= -7/2
Answer: 8a