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Nonlinear Functions

SAT Math· difficulty 4/5

A population doubles every 5 years. Which model represents the population starting at 800?

  • A

    P(t)=800⋅5tP(t) = 800 \cdot 5^t

  • B

    P(t)=800⋅2tP(t) = 800 \cdot 2^t

  • C

    P(t)=800⋅5t/2P(t) = 800 \cdot 5^{t/2}

  • D

    P(t)=800⋅2t/5P(t) = 800 \cdot 2^{t/5}

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Explanation

Doubling every 5 years: P(t)=800⋅2t/5P(t) = 800 \cdot 2^{t/5}.

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