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17. The height, h, in metres, of a firework as a function of time, /, in seconds, is given by h() = -4.91 + 981

17. The height, h, in metres, of a firework as a function of time, /, in seconds, is given by h() = -4.91 + 981 + 2. Determine the maximum height of the firework. [3 Marks] 18. Are there points of inflection on the function A(x) = 10x + -? [3 Marks]

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