1. An increase or growth that follows a straight line when plotted on a graph, where the rate of change remains constant
The population showed a linear increase of 1,000 people per year.
A população mostrou um aumento linear de 1.000 pessoas por ano.
2. In mathematics and physics, a change proportional to an independent variable with a constant rate
The cost has a linear increase with the number of units produced.
O custo tem um aumento linear com o número de unidades produzidas.