Display discontinuous point and open/close intervals
I'm trying to make a class about limits, I want to display a sectioned function and also display its intervals and holes, like this image.
I find two problems with this:
- GeoGebra doesn't do this, so I have to create each point manually.
- The point doesn't match the border color with the line color, the border color is always black and when I choose the point style it has no background color. This can be a problem, this lead to confusion for some of my students, because the point style doesn"t match with Khan Academy (yes, my student can easily get confused).
Is there a command that do this?
How I can change the border color of a point?