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Nonlinear Functions

SAT Math· difficulty 4/5

What is the yy-intercept of y=3⋅2x+1−1y = 3 \cdot 2^{x + 1} - 1?

  • A

    33

  • B

    55

    check_circle
  • C

    22

  • D

    66

Explanation

Set x=0x = 0: y=3⋅21−1=6−1=5y = 3 \cdot 2^1 - 1 = 6 - 1 = 5.

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