I hope this helps you
slope = 5-0/-6-(-3)= -5/3
(0,0)
m.(x1-x)=y1-y
-5/3.(0-x)=0-y
5x= -3y
5x+3y=0
When you say something goes on forever, it means that it is going on to infinity. Infinity is something that can be used as a mathematical concept, but forever is not. Forever is something people say if they don't know how infinity is used.
I used mathway to answer this and it said it was -6y(to the second power)+8y
Answer: 16-gon or also hexadecagon