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5.4 - 2014 Q10 Answers

10) A curve with equation y = f(x) passes through the point (4, 25). Given that
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A) find f(x), simplifying each term. (5)

B) Find an equation of the normal to the curve at the point (4, 25).
Give your answer in the form ax + by + c = 0, where a, b and c are integers to be found. (5)

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