Question

1. what is the name of the line that a figure is flipped over during a reflection? line of symmetry axis of symmetry origin line line of reflection

Explanation:

In geometry, the line over which a figure is flipped during a reflection is called the line of reflection. A line of symmetry or axis of symmetry is for a figure that can be folded onto itself, and there's no such thing as "origin line" in this context.

Answer:

D. line of reflection