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Linear Functions

SAT Math· difficulty 3/5

The function f(x)=2x−1f(x) = 2x - 1 has domain {0,1,2,3}\{0, 1, 2, 3\}. Which set is the range?

  • A

    {−1,1,3,5}\{-1, 1, 3, 5\}

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  • B

    {1,3,5,7}\{1, 3, 5, 7\}

  • C

    {−1,0,1,2}\{-1, 0, 1, 2\}

  • D

    {0,1,2,3}\{0, 1, 2, 3\}

Explanation

f(0)=−1,f(1)=1,f(2)=3,f(3)=5f(0) = -1, f(1) = 1, f(2) = 3, f(3) = 5.

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