Question

a certain mapping in the xy - plane has the following properties: every point a on line l maps to itself. every point p that isnt on l maps to point p such that l is the perpendicular bisector of pp. which transformation does the mapping define? choose 1 answer: a a translation b a reflection c a rotation

Explanation:

In a reflection, points on the line of reflection remain unchanged, and points not on the line of reflection are mapped to new points such that the line of reflection is the perpendicular bisector of the segment connecting the original and new points. Here, line $\ell$ acts as the line of reflection with the given mapping properties.

Answer:

B. A reflection