Final answer:
To draw a line in a frame, you would use specific functions or methods provided by the programming language or software you're working with, such as line() or drawLine() depending on the context. The 'Fill the Frame' lesson in Project Stem 6.4 will guide you through understanding and practicing this with various resources.
Step-by-step explanation:
The function used to draw a line in a frame largely depends on the programming language or the software you are using. If you are working with a graphics package in a programming language like Python, you might use a function such as line() in the Processing library or drawLine() in the Java Graphics class. In web development, drawing a line within an HTML canvas element can be achieved using JavaScript and invoking the stroke() method after defining the path with moveTo() and lineTo() methods. Remember, the specifics will vary based on your context.
In your Project Stem 6.4 Lesson Practice focusing on 'Fill the Frame', you should first review the provided explanations, photographs, and online resources to build a thorough understanding of the concept. After you have explored and learned from these resources, you will have the opportunity to practice using the relevant functions in the 'Build Your Skills' section. Clarifying which programming language or environment you are working in would help provide a more precise function name. However, in most cases, these programming functions and methods are designed to help you draw and manage lines within a graphical frame or canvas on your screen.