The Aust Corporation has gathered the following data on its copy machine costs for the first eight months of the year.

Month		Number of Copies			Total Copy Cost
January		40,000			$ 3,500
February		35,000			$ 3,200
March		60,000			$ 4,100
April		80,000			$ 5,100
May		85,000			$ 5,600
June		75,000			$ 4,800
July		82,000			$ 5,300
August		105,000			$ 6,000

(a)

Assuming the line intersects the y-axis at $2,000 and using the January activity levels what is the equation of the line that would be drawn for a scattergraph. (Round variable cost to 4 decimal places, e.g. 15.2513 and fixed cost to 0 decimal places, e.g 1526.)

y

=

$ /copy +

$