<PRE><B>Question 56998</B>
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 
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You have two points to work with: (100,10000) and (300,22000)
You want C=mx+b and need to know m and b:
m= [22000-10000]/[300-100]=12000/200=60
Then:
10000=60(100)+b
10000=6000+b
b=4000
EQUATION:
Cost=60x+4000
Cheers,
Stan H.</PRE>