Final answer:
The JPEG format is ideal for web graphics due to its ability to display millions of colors and its use of compression to create smaller file sizes, which helps images load faster online.
Step-by-step explanation:
For a graphic produced for the Internet that needs to be small in size, the JPEG file format typically works best. JPEG stands for Joint Photographic Experts Group and is a commonly used format for digital photos. There are two main reasons why JPEG is preferable: Firstly, it can display millions of colors, making it perfect for detailed images. Secondly, JPEG utilizes compression to create smaller file sizes while maintaining a visually pleasing appearance. This compression reduces the storage requirement and allows images to load faster on the web, especially important for users with slower internet connections or with limited data plans. The balance between image quality and file size is achieved by adjusting the resolution and the level of compression.