Question

Heng tried to define a reflection across line r.

• Any point N on line r maps to itself.

• Any point M not on the line of reflection maps to a point M' such that the midpoint L of MM' is

on liner.

Which counterexample shows that Heng's definition does not fully define a reflection?

Choose 1 answer:

Answer 1

C. This matches Heng's definition, but is not a reflection, because MM'MM

′

M, M, prime is not perpendicular to line rrr.

Explanation: