Final answer:
George's line is a term used in physics to describe a line in a graph that represents a continuous or smooth relationship between two variables.
Step-by-step explanation:
George's line is a term used in physics to describe a line in a graph that represents a continuous or smooth relationship between two variables. However, a discontinuous line may indicate a sudden change or break in that relationship. For example, in Figure 5.28, a discontinuous line could indicate two overlapping lines rather than four lines meeting in the center.