1. Distance-Time Graph: A distance-time graph represents the distance traveled by an object as a function of time. It shows how the distance of the object from its starting point changes with time. The distance can be positive or zero, but it cannot be negative as distance is a scalar quantity.

Key features of a distance-time graph:

• The vertical axis (y-axis) represents the distance traveled by the object.
• The horizontal axis (x-axis) represents time.
• The slope of the graph represents the speed or rate of motion of the object. The steeper the slope, the faster the object is moving.
• If the slope is positive, the object is moving away from the starting point. If the slope is zero, the object is at rest. If the slope is negative, the object is returning toward the starting point.

2. Position-Time Graph: A position-time graph represents the position or displacement of an object as a function of time. It shows how the object's position changes with respect to its starting point over time. Position is a vector quantity, meaning it has both magnitude and direction.

Key features of a position-time graph:

• The vertical axis (y-axis) represents the position or displacement of the object from its starting point.
• The horizontal axis (x-axis) represents time.
• The slope of the graph represents the object's velocity or rate of change of position. If the slope is positive, the object is moving in the positive direction. If the slope is zero, the object is at rest. If the slope is negative, the object is moving in the negative direction.