Help with Engineering Materials Lab.

Plot a graph that shows the relationship bewteen TL vs J$0$ in the graph there should be three different lines one that shows angle load $,$ another that shows angle unload and the third that shows angle reload $.$ In order to graph the relationship between Tl vs J$0$ you must solve the calculations to find TL$=$ Torque x Lenght $($lenght is $0\mathrm{.}05$m$)$ and J$0=$ where J is a geometric function J$=($pi$*$D$)/(32)$ and $0$ which is $0$ is the angle unload,load and reload so you have to have $18$ points for Tl and $18$ points for J$0$