Answer:

The concept of the slope of a line is applied in real-life situations, such as in calculating speed and velocity. For example, in physics, when determining the speed of a car, you can use the slope of the distance-time graph. If the distance covered (y-axis) is divided by the time taken (x-axis), you obtain the slope, which represents the car's speed. A steeper slope indicates a higher speed, while a shallower slope corresponds to a slower speed. This application is crucial for traffic safety, navigation, and understanding motion in various contexts.