If an object is placed 25.0 cm from a concave mirror whose focal length is 5.0 cm, where is the image located?
For this question, we need to use the mirror formula
What the problem gives us is: f = 5.0 cm, and
We know that this is a real image because
The same process can be used if you know the distance from the image to the vertex of the mirror, and are looking for