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Nonlinear Functions

SAT Math· difficulty 3/5

For f(x)=x3f(x) = x^3, by what factor does ff change when xx doubles?

  • A

    88

    check_circle
  • B

    44

  • C

    22

  • D

    66

Explanation

f(2x)=(2x)3=8x3=8f(x)f(2x) = (2x)^3 = 8x^3 = 8 f(x).

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