1. Complete this table to the level of consumption at which TU is at a maximum.

Q	60Q	–4Q2	=	TU
1	60	–4	=
2	120	–16	=
3	180	–36	=
4	240	–64	=
5	300	–100	=
6	360	–144	=
7	420	–196	=
8	480	–256	=

2.  Derive the MU function from the following TU function:

                        TU = 200Q – 25Q² + Q³

From this MU function, draw up a table (like the one above) up to the level of Q where MU becomes negative. Graph these figures.