What is the velocity of the particle at a given time from graph

The video tutorial explains the concept of velocity and how to calculate the slope using a graph. It demonstrates the use of the slope formula with specific points and addresses common mistakes in arithmetic. The tutorial also covers the concept of acceleration, emphasizing its constancy when the slope is unchanged between two points.

Explain the significance of showing your work in calculations.

What conclusion does the teacher reach about the slope from point 4 to point 6?