What if motion of a car whose Speed-time graph shows a Horizontal line and followed by a straight line that and slopes downward to the bottom of the graph?

If the speed-time graph shows a horizontal line, it indicates that the car is moving at a constant speed. Following this, a straight line that slopes downward indicates that the car is decelerating, meaning it is slowing down over time. The downward slope represents a decrease in speed until it eventually comes to a stop. This combination suggests that the car initially travels at a steady pace before gradually reducing its speed.