The given diagram is an example of:

Answer: Translation

Explanation: The diagram shows the shape moved to a new position by horizontal and vertical offsets labeled tx and ty. The shape's size and orientation remain unchanged, which is the defining feature of a translation.

• How to identify translation in a diagram: look for an identical shape in a different location and an arrow or labels showing the horizontal and/or vertical shift.

• Mathematical form: a point (x, y) moves to (x + tx, y + ty) where (tx, ty) is the translation vector.

• Why other transformations are incorrect: rotation would change orientation, scaling would change size, and reflection would mirror the shape — none of which occur here.