question 2 with steps please

1- Draw a displacement-time graph Displacement Vs. Time 33 30 27 24 21 18 15 W O 0 0.04 0.08 0.12 0.16 0.2 0.24 0.28 0.32 0.36 0.4 0.44 0.48 0.52 0.56 2- Find the average velocity between 3rd and 5th interval from the graph and compare with the slope of the tangent at the 4th interval. Put the value of the velocity against t =fourth interval. Repeat the above between 4th and sixth intervals and put against t = 5th time. Repeat for the other points