Qualitative Graph

A qualitative graph is a graph used to represent the relationships between quantities without using specific numbers on the axes.

As shown in the example graphs, the axes have labels but lack numerical values. The first graph shows how the speed of a car changes over time. At time zero, its speed is zero. The speed of the car increases at a constant rate. The speed eventually reaches a limit and does not change for a while. Finally, the speed of the car decreases at a constant rate until it becomes zero again.