How do I calculate speed in a velocity-time graph? Displacement-time graph?

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To calculate speed from a velocity-time graph, the speed at any point corresponds to the value of the velocity at that specific time. In a displacement-time graph, speed is defined as the change in displacement divided by the change in time. For small time intervals, this can be interpreted as the instantaneous speed at a given point on the graph. Understanding these concepts is crucial for analyzing motion accurately. Mastering these calculations is essential for solving related physics problems.
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Homework Statement


How do I calculate speed in a velocity-time graph? And in a displacement-time graph?

Homework Equations


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The Attempt at a Solution


I'm quite at a lost at how to calculate these =S
Any help is appreciated.
 
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If your graph is V(t) vs. t then isn't the graph at any point the V at that particular t?

For displacement and time, what is the definition of speed? Change in displacement for a change in time? And if you examine an extremely small time change at a point then what is that?
 

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