Multiple Choice Question (MCQ)

The equation of the axis of symmetry of the function y = 2x^2 + 3x - 6 is

  1. ×

    x=-\dfrac{3}{2}

  2. ✓

    x=-\dfrac{3}{4}

  3. ×

    x=-\dfrac{1}{3}

  4. ×

    x=\dfrac{1}{3}

  5. ×

    x=\dfrac{3}{4}

Collected in the board: Quadratic function

Steven Zheng posted 1 year ago

Answer

  1. For a quadratic function y =ax^2+bx+c

    Its equation of the axis of symmetry is

    x = -\dfrac{b}{2a}

    For the function y=2x^2+3x−6 ,

    a= 2, b= 3

    Therefore, its equation of the axis of symmetry is

    x=-\dfrac{3}{4}

    The correct choice is B

Steven Zheng posted 1 year ago

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