Which way of presenting graphical information is more economical in terms of memory usage?

There are 2 ways of presenting graphic information – vector and raster. The bitmap way of representation is that the image is composed of pixels. The image is the clearest, but it requires a lot of memory. Vector images are made up of vectors. They are less clear but do not change when they are zoomed in or out. Requires less memory. Thus, the most economical way is vector representation.
Answer: vector representation.