Precalc help anyone?

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  • 4 months ago

    y = a(x - h)^2 + k

    8 = a(6 - 7)^2 + 15

    8 = a + 15

    8 - 15 = a

    a = - 7

    The equation of the vertex of the parabola is y = - 7(x - 7)^2 + 15... answer//

  • Ash
    Lv 7
    4 months ago

    y= a(x-h)²+k

    y = a(x-7)² + 15

    since it passes through (6,8)

    8 = a(6-7)² + 15

    -7 = a

    so the equation becomes

    y = -7(x-7)² + 15

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