Temperature is usually depicted by the line graph because it is a property that

Temperature is usually depicted by the line graph because it is a property that varies continuously over time. Temperature is a measure of the average kinetic energy of the particles in a substance, and it can change constantly as heat is added or removed from the substance. By using a line graph to plot temperature over time, we can easily see how it changes over the course of hours, days, or even years. Other properties that fluctuate over space or are measured in terms of quantity, such as pressure or density, may be better represented using different types of graphs.