Final answer:
The image, distance and magnification depend on the object's distance from the lens and the focal length of the lens. When the object is closer than the focal length, the image is virtual and upright. When the object is farther, the image is real and inverted.
Step-by-step explanation:
When the object is farther than the focal length from the lens, the image distance is positive, which indicates a real image that is on the opposite side of the lens from the object and inverted. The image is virtual, on the same side of the lens as the object, and upright when the object is closer than the focal length from the lens.
The image location, denoted as q, is taken as positive when the image is on the opposite side of the lens and negative when on the same side as the object. The magnification, denoted as M, is the ratio of image height to object height and has a positive value when the image is upright and negative when inverted.
In some cases, when the object is at infinity, there is no image formed, and both the image distance (q) and magnification (M) are set to zero.