What is linearly?

A linearly is a term used in mathematics and physics to describe a system or function that has a proportional relationship between its inputs and outputs. This means that as the input increases or decreases, the output also increases or decreases at a constant rate.

Linearly can be represented by a straight line on a graph, and the equation for a linear function typically takes the form of y = mx + b, where m represents the slope of the line and b represents the y-intercept (the point where the line intersects with the y-axis).

Linear systems and functions have a number of useful properties, including the ability to be easily modeled and predicted, as well as the ability to be easily scaled or adjusted by simple multiplication or division. However, linearly is not always applicable, as many real-world systems and functions are non-linear, meaning that their behavior is not proportional in this way.