Linear functions | Wiskunde op Tilburg University

Definition: A function of the form

$y(x)=ax+b,$
where

$a$ and

$b$ are numbers (

$a\neq 0$ ), is called a linear function.

Remark 1: For

$a=0$ this is a constant function.

Remark 2: The graph of a linear function is a straight line.

Example: De function

$N(t)=2t+3$ is an example of a linear function.