Question

how will you show the slope of displacement time graph gives velocity of the body ?

Answer 1

It will be straight line
Generally displacement is taken on y axis and time is on x axis

Its slope will give velocity
As slope is displacement / time which is velocity.

Hope u would like it.

Answer 2

In Displacement time graph, the time is taken on X axis and displacement on y axis.
The slope of displacement time graph gives velocity.
Since velocity= displacement/ time.

For example:
Please refer THE attachment:
Velocity of body at t 1= slope of straight line
= displacement/ time
=X1/t1