Nonlinear Functions

SAT Math· difficulty 4/5

The graph of y=3xy = 3^x is shifted 4 units down. What is the y-intercept of the new graph?

  • A

    4-4

  • B

    33

  • C

    1-1

  • D

    3-3

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Explanation

New equation: y=3x4y = 3^x - 4. At x=0x = 0: 14=31 - 4 = -3.

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