1) Find the supply equation using the given information. ( Let c be the number of items.)

At a price of $1300 a supplier will supply 160 items. If the price decreases by $400, then the supplier will supply 50 fewer items.

s(x)=

2) Find the deprecation equation and corresponding domain using the given info. ( Let V be the value in dollars. Let T be the number of years since the item was purchased.)

A violin bow is purchased for $900 and the value of the bow decreases by $10 per year for 9 years.

c(t)=

3) Assume that the linear cost model applies. If the total cost of producing 1100 items at $10 each is $11420, find the cost equation. (Let x be the number of items.)

c(x)=