Question 43349
Projections are that 100 items will cost 10,000 to produce and that 300 items will cost 22,000 to produce. find the equation that relates C and x

You have two points: (100,10000) and (300,22000)

The equation you want has the form C=mx+b

m=[22000-10000]/[300-100]=12000/200=60

With Cost=10000, x=100 and m=60 you can find "b", as follows:

10000=60(100)+b
10000=6000+b
b=4000

EQUATION:
C=60x+4000

Cheers,
stan H.