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Linear Functions

SAT Math· difficulty 3/5

Let f(x)=x2+1f(x) = \dfrac{x}{2} + 1. What is f(f(6))f(f(6))?

  • A

    55

  • B

    33

    check_circle
  • C

    44

  • D

    77

Explanation

f(6)=4f(6) = 4. f(4)=3f(4) = 3.

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