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Nonlinear Functions

SAT Math· difficulty 3/5

The graph of which parent function passes through (0,0)(0, 0) and (1,1)(1, 1) and increases without bound, with concavity facing down (decreasing rate of increase)?

  • A

    y=x2y = x^2

  • B

    y=2xy = 2^x

  • C

    y=x3y = x^3

  • D

    y=xy = \sqrt{x}

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Explanation

y=xy = \sqrt{x} passes through (0,0)(0, 0), (1,1)(1, 1), and grows with decreasing rate (concave down).

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