Algebra

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The equation h = -16t^2 + 32t + 9 gives the height of a ball, h, in feet above the ground, at t seconds after the ball is thrown upward. How many seconds after the ball is thrown will it reach its maximum height? What is its maximum height?

  • Algebra -

    find the vertex of the parabola.
    The t of the vertex tells you when it reached the maximum height, the h tells you what that height is.

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