What Does Linear Function Mean?

A linear function is a mathematical expression which, when graphed, will form a straight line. A linear function is a simple function usually composed of constants and simple variables without exponents as in the example, y = mx + b.

Techopedia Explains Linear Function

A linear function is literally a formula for a straight line when solved and all the variables are replaced with constants. The base equation of a linear function is y = mx + b where: