Answer:
Anything before 0 is negative. In this case we’re trying to “plot” - 1 2/3. It has to be between -2 and 0 on this plot.
Now lets imagine we have a center line between -2 and 0.
You’d get
-2, -1, 0
Now using that benchmark/ estimate, go towards the LEFT between -1 and -2. Now when reached about half way, go forward for a bit more and you should receive it.
Thats it!