Linear Equations in One Variable

SAT Math· difficulty 4/5

A linear cost model is C(x)=1500+25xC(x) = 1500 + 25x where xx is items produced. What does the 25 represent?

  • A

    Profit per item

  • B

    Total cost when x=0x = 0

  • C

    Fixed setup cost

  • D

    Cost per item produced

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Explanation

The slope 25 is the variable cost per additional item produced.

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