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Nonlinear Functions

SAT Math· difficulty 3/5

A function tripled each year. If f(0)=5f(0) = 5, what is f(4)f(4)?

  • A

    6060

  • B

    135135

  • C

    405405

    check_circle
  • D

    12151215

Explanation

f(t)=5⋅3tf(t) = 5 \cdot 3^t, f(4)=5⋅81=405f(4) = 5 \cdot 81 = 405.

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