"Linear" refers to a relationship or pattern that can be represented in a straight line. In mathematics, a linear equation describes a direct proportionality between two variables, often expressed in the form y = mx + b, where m is the slope and b is the y-intercept. This concept is fundamental in algebra and is used in various fields, including physics and economics. In a broader context, "linear" can describe processes or sequences that follow a straight, sequential path. For example, a linear narrative in storytelling unfolds in a straightforward manner, progressing from beginning to end without significant deviations. This contrasts with non-linear structures, which may involve flashbacks or multiple timelines.