Final answer:
The command that slants text is called Italic. It contrasts with other commands like Bold, Underline, and Strikethrough, and is commonly used for emphasis.
Step-by-step explanation:
The formatting command that changes text so it is slanted is known as Italic. This option is typically found in word processing software and can be applied to text to emphasize a word or phrase. It's one of several text formatting tools available, which also include Bold, Underline, and Strikethrough. Unlike bold, which makes text heavier and more pronounced, and underline, which draws a line beneath the text, italics create a gentle slant to the right, imitating a handwritten style often used for emphasis.