## Vectors

## Conic Sections

Circles formula (x-h)^2+(y-k)^2=r^2

Vertex (h,k)

All circles have an eccentricity of 0

the cursive f stands for focus on the graphs

Vertex (h,k)

All circles have an eccentricity of 0

the cursive f stands for focus on the graphs

## Inventory Management Problem (how many orders a year)

This problem comes up in most Business Calculus classes, but not many regular Calculus 1 classes. The formula is

C(x) = Q /(2x) * (storage cost per unit per year) + (cost or placing an order)*x

C(x) is the cost of order-placement and storage.

Q is the total quantity to be bought throughout the year.

x is the number of orders.

The two in Q/(2x) is to get the

C(x) = Q /(2x) * (storage cost per unit per year) + (cost or placing an order)*x

C(x) is the cost of order-placement and storage.

Q is the total quantity to be bought throughout the year.

x is the number of orders.

The two in Q/(2x) is to get the

**average**quantity stored. If you order 400 TVs, and then reorder when you have 0 TVs, on average you were storing 200 TVs over that period.