Curved

Type of Curve

Image seen

Concave

If the object is more than twice the focal length (F) of the mirror away, the image will be real, vertically inverted, and smaller.

The image is coming closer to the actual size of the object as the object approaches a distance of twice the focal length of the mirror, at which point, the image is still real, and vertically inverted, but of equivalent size.

After the 2F mark, the image continues to grow. It's size approaches infinity as the object approaches the F mark.

At exactly the focal length away from the mirror, no image is visible.

As the object approaches the mirror from the focal point, the image is virtual, upright, and larger.

Convex

Always virtual, upright and smaller.

Definition of terms:

Virtual image: An image formed by rays of light which appear to be originating from some point behind the mirror to your eye, because the eye traces these rays back to the presumed source.

Real image: An image formed by the rays of light converging at some point on the object's side of the mirror. Placing an opaque screen is often the easiest way to see these images.

F: Focal Length, a property of the curvature of the mirror