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Nonlinear Functions

SAT Math· difficulty 3/5

Which formula represents 3% annual decay starting at 500?

  • A

    y=500(0.97)ty = 500(0.97)^t

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  • B

    y=500−0.03ty = 500 - 0.03t

  • C

    y=500(1.03)ty = 500(1.03)^t

  • D

    y=500(0.03)ty = 500(0.03)^t

Explanation

Decay factor 1−0.03=0.971 - 0.03 = 0.97.

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