Let us say I was in your class on that Monday.

You were given a Cost function C(x), and a Revenue function R(x).

1. Set up a profit function,

P(x) = R(x) -C(x)

2. Find the Breakeven points,

At break-even, R(x) = C(x)

3. Find the quantity that leads to the maximum profit,

In the P(x), the x = -b/2a is what you are looking for.

That is if P(x) is in the form

P(x) = ax^2 +bx +c

4. Find the maximum Profit.,

Maximum profit is the value of P(x) when x = -b/2a

and 5. Find the price that leads to the maximum profit.

Umm, this is related to x = -b/2a

If x is not the quantity or number of products o demand, then x must be the price.

Now here is my problem. I fell asleep in your class that Monday when C(x) and R(x) were given. That's why I don't know what really is x suppopsed to be.