Final answer:
A vertical (up and down) image is typically in portrait orientation, which is suitable for documents or images that are taller than they are wide, as opposed to landscape orientation.
Step-by-step explanation:
If an image is vertical, meaning it is oriented up and down, the page orientation for this image would often be referred to as portrait orientation. Portrait orientation is commonly used for documents or images that are taller than they are wide. This is opposite to landscape orientation, where the width is greater than the height, resembling the horizon in a landscape. In the context of physics or optics, such as with lenses and mirrors, a positive magnification might indicate that the image retains its vertical orientation, termed an 'upright' image, while a negative magnification signifies an 'inverted' image.