what does a mirror do to images that it reflects
A mirror reflects light that falls on its surface. When light interacts with the mirror, it follows the law of reflection: "the angle of incidence is equal to the angle of reflection." This means that the direction in which light hits the mirror is the same as the direction in which it bounces off the mirror.
So, when a mirror reflects an image, it flips the image horizontally but doesn't change the image's size or shape. This effect is often referred to as "mirror image" or "left-right inversion." For example, if you raise your right hand in front of a mirror, its reflection will show it as your left hand.
To see how a mirror reflects images, you can simply place an object in front of a mirror and observe its reflection. The mirror will reproduce a virtual image of the object as if it were behind the mirror.