If I delete my answer, what happens to the points that have been added/subtracted from my reputation?
I do not see an answer to this when I do a search in the help section.
You get back the points that were substracted from your reputation. As the FAQ says (in the section What does deletion mean for a post?)
Reputation changes from bounties, votes (both up and down), and acceptances on deleted posts (including answers to a deleted question) are nullified.
See there for exceptions.