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The manager of a furniture factory finds that it costs $3000 to manufacture 80 chairs in one day and $4800 to produce 280 chairs in one day. (a) Express the cost C (in dollars) as a function of the number
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The manager of a furniture factory finds that it costs $3000 to manufacture 80 chairs in one day and $4800 to produce 280 chairs in one day. (a) Express the cost C (in dollars) as a function of the number of chairs x produced, assuming that it is linear. C

User Khalid Khan
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1 Answer

5 votes

9514 1404 393

Answer:

C = 9x +2280

Explanation:

The 2-point form of the equation for a line can be a place to start.

y = (y2 -y1)/(x2 -x1)(x -x1) +y1

C = (4800 -3000)/(280 -80)(x -80) +3000 . . . . . use given values

C = 1800/200(x -80) +3000 . . . . simplify some

C = 9x -720 +3000 . . . . eliminate parentheses

C = 9x +2280

User Renz Manacmol
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