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Linear Functions

SAT Math· difficulty 3/5

If f(x)=2x+3f(x) = 2x + 3 and g(x)=x−4g(x) = x - 4, what is f(g(5))f(g(5))?

  • A

    1

  • B

    11

  • C

    13

  • D

    5

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Explanation

g(5)=1g(5) = 1. f(1)=2+3=5f(1) = 2 + 3 = 5.

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