Linear Functions

SAT Math· difficulty 3/5

A car rental costs C(d)=25+0.20dC(d) = 25 + 0.20d dollars where dd is miles driven. What does 0.200.20 represent?

  • A

    Flat fee

  • B

    Number of miles

  • C

    Cost per mile

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  • D

    Total fee

Explanation

The slope 0.200.20 is the per-mile rate.

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