It is used to show Distance Travelled and Time Taken on a graph paper
Here,
Time Taken is shown on x axis
Distance is shown on y axis
Distance Time Graph for Uniform Speed
Suppose an object travells at Uniform speed of 50 km/hour
It means
Hour 
Distance Travelled

0  0 
1  50 
2  100 
3  150 
4  200 
Plotting it in Graph
We show
Time on x axis
Distance on y axis
Distance Time Graph for Object Moving at Non Uniform Speed
Suppose an object travels at of 30 km/hour in first hour,50 km/hr in second hour,100 km in third hour ,140 km in fourth hour
It means
Hour 
Distance Travelled

0  0 
1  20 
2  70 
3  150 
4  200 
Distance Time Graph in case of Stationary Object
In case of Stationary object,Distance Travelled does not change
Suppose Distance travelled in 1 hour,2 hour ,3 hours remains fixed at 100 km
In this case Distance time graph will be as follows
Finding Velocity from DistanceTime Graph
Summary Of Distance Time Graph
Questions
NCERT Question 6  Fig 8.11 shows the distancetime graph of three objects A,B and C. Study the graph and answer the following questions: