Here are the evaluations of the statements regarding "supporting details":
1. **They can be facts, examples, statistics, and quotations.**
**True** - Supporting details often include various forms of evidence such as facts, examples, statistics, and quotations to back up the main idea.
2. **They negatively impact the point or argument the author is trying to make.**
**False** - Supporting details are intended to reinforce or strengthen the author’s point or argument, not undermine it.
3. **They are only used in fictional writing.**
**False** - Supporting details are used in both fictional and non-fictional writing to provide evidence and clarity.
4. **They are details that support the central idea.**
**True** - Supporting details serve to elaborate on and support the central idea of a piece of writing.
So, the summary of truth values is:
1. True
2. False
3. False
4. True