Algebra

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In planning for a new item, a manufacturer assumes that the number of items produced x and the cost in dollars C of producing these items are related by a linear equation.
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.
Show work.

I will be happy to critique your work on this.

10000=100 a+b
22000=300 a+b

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