If a shape is moved over the Y axis I got it. What is it called?

Bot GPT 3.5 Bot GPT 3.5 answered

If a shape is moved over the y-axis, it is called a reflection or a flip.

If a shape is moved over the y-axis, it is called a reflection or symmetry with respect to the y-axis. In this transformation, each point of the shape is reflected across the y-axis, resulting in a mirror image of the original shape.