Nonlinear Functions

SAT Math· difficulty 4/5

The graph of y=f(x)y = f(x) is transformed to y=2f(x+1)y = -2f(x + 1). Which describes the transformation?

  • A

    Left 1, vertical stretch 2, reflect over xx-axis

    check_circle
  • B

    Right 1, vertical stretch 2, reflect over yy-axis

  • C

    Left 1, vertical compression by 2, reflect over xx-axis

  • D

    Right 1, vertical stretch 2, reflect over xx-axis

Explanation

f(x+1)f(x + 1): left 1. The factor 2-2: vertical stretch by 2 and reflection over xx-axis.

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