Can you insert a break in the middle of an x-axis?

Question

Such as going from 5 -100, then to 101, 102, 103, 104, etc.

Answer 1

You can put a break, but you should mark it clearly e.g. with a jagged line. In your example it would probably be better to start at 100.

I would recommend never put a second break in the x-axis, however you could do it, especially if you had a good reason to do so.