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6 September, 04:22

A parabola has a vertex at (-3,2). Where is the axis of symmetry?

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  1. 6 September, 05:04
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    The axis of symmetry of the parabola with a vertex at (-3, 2) is at

    x = - 1/2

    Step-by-step explanation:

    Given a quadratic function (parabola) of the form:

    y = ax² + bx + c

    The axis of symmetry of the function is a vertical line that divides the parabola into two congruent halves. The x-coordinate of the vertex is the equation of the axis of symmetry of the parabola.

    This is given as x = - b/2a

    We are given a parabola with vertex at (-3, 2). The quadratic function corresponding to this is

    y = (x - (-3)) (x - 2)

    = (x + 3) (x - 2)

    = x² - 2x + 3x - 6

    y = x² + x - 6

    Here, a = 1, b = 1, and c = - 6

    The axis of symmetry is at

    x = - b/2a

    = - 1/2 (1)

    = - 1/2
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