What action causes a graphic image to appear when a user rolls the mouse over a certain page element?

The action that causes a graphic image to appear when a user rolls the mouse over a certain page element is referred to as a mouseover or rollover effect. This interaction enhances user experience by providing visual feedback and engagement with the website. When the mouse is hovered over an element, it triggers an event that can alter the appearance of the element, which may include changing its image, color, or style. This technique is commonly used in web design to make interfaces more interactive by visually indicating that an element is clickable or to provide additional context or information related to the hovered item.

In contrast, a hover effect typically encompasses various changes that can occur when the mouse is over an element, but it may not always refer to displaying a new graphic. Click action pertains to an event that occurs after an element is clicked rather than while hovering over it. Slide transitions involve animated changes between different elements or slides, which do not specifically refer to the hover action.