i don't know how to calculate the velocity.

The problem is:

Use the velocity of a particle as a function of time tabulated below , to calculate the position of the particle at eact of the times ( assume at t=0 ,the particle is at the origin)

Times(s)

0.0

.5

1.5

2.5

3.5

velocity (m/s)

0.00

0.75

1.75

8.75

21.75

position (m)

0.00

0.19

1.44

6.69

21.94

The answer is the column in red, BUT I don't know how to find those values.

please Can someone can help me how to find the values of the positions.

I tried the formula x=v*t but it does not work.

please help

Thank you

Bertrand