Question

1. what type of transformation does this represent?

options: rotation, reflection, stretch, translation

Explanation:

Step1: Identify transformation type

Check the position of triangles relative to the y-axis. The blue triangle (ABC) and purple triangle (A'B'C) are mirror images across the y-axis.

Step2: Match with options

Mirror image across a line is reflection. Rotation involves turning, stretch changes size, translation shifts position—none apply here.

Answer:

reflection