Question

identify the transformation shown on the coordinate plane.
options: rotation, translation, reflection

Explanation:

The original triangle and its image are mirror images across the x-axis, where each point (x, y) on the original maps to (x, -y) on the image. This matches the definition of a reflection over the x-axis. Rotation would involve turning the shape around a point, and translation would involve sliding the shape without flipping it, neither of which is occurring here.

Answer:

reflection