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Nonlinear Functions

SAT Math· difficulty 4/5

A graph passes through (0,0)(0, 0), has the shape of a "V", and opens upward with vertex at the origin. What is the equation?

  • A

    y=x2y = x^2

  • B

    y=xy = \sqrt{x}

  • C

    y=∣x∣y = |x|

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  • D

    y=xy = x

Explanation

The absolute value function y=∣x∣y = |x| has the V-shape with vertex at the origin.

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