MaeveMaeve

BakerBaker

is the new manager of the materials storeroom for

ParrParr

Manufacturing.

MaeveMaeve

has been asked to estimate future monthly purchase costs for part #696, used in two of

ParrParr's

products.

MaeveMaeve

has purchase cost and quantity data for the past 9 months as follows:

Month	Cost of Purchase	Quantity Purchased
January	$12,687	2,660 parts
February	12,990	2,810
March	17,763	4,153
April	16,011	3,724
May	13,094	3,001
June	13,814	3,387
July	15,322	3,622
August	10,251	2,275
September	14,930	3,502

Estimated monthly purchases for this part based on expected demand of the two products for the rest of the year are as follows:

Month	Purchase Quantity Expected
October	3,390 parts
November	3,720
December	3,010

Requirement 1. The computer in

MaeveMaeve's

office is down, and

MaeveMaeve

has been asked to immediately provide an equation to estimate the future purchase cost for part #696.

MaeveMaeve

grabs a calculator and uses thehigh-low method to estimate a cost equation. What equation does she get?

=

+ (

)