The image formed by a concave mirror

Explain the images formed by a concave mirror for different position of the object.

The real image formed by a concave mirror is smaller than the object if the object is :

The real image formed by a concave mirror is larger then the object when the object is :

What is the minimum distance between the object and its real image formed by a concave mirror and when is it possible ?

The erect image formed by a concave mirror is of size double the size of object. How are u and v related?

A real image formed by a concave mirror is 4.5 times the size of the object. If the mirror is 20 cm from the object, its focallength is

For the system as shown in the figure, the image formed by the concave mirror