Draw a velocity - time graph for an object in uniform motion show that the area under the velocity

Slope of the graph is zero

Velocity X time = acceleration.

So, the slope of the body gives acceleration.

Slope of the graph is zero

Since, acceleration is zero, displacement of the object can be given as

Displacement = Velocity  time = Area uner the curve 

<img alt="velocity vs time graph " class="img-reponsive" loading="lazy" title="" velocity="" vs="" time="" graph="" "="" data-cke-saved-src="https://apiengine3.home-tution.com/webroot//files/10w.png" src="https://apiengine3.home-tution.com/webroot//files/10w.png">

The graph under the velocity vs time graph gives displacement.