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12 questions from this quiz
dydx=0\frac{dy}{dx} = 0dxdy=0
Changes from increasing to decreasing
Write down the function to maximise
14 seconds
98 metres
t=7t = 7t=7 seconds
A=20x−x2A = 20x - x^2A=20x−x2
100 square metres
Maximum (opens downward)
∩ shape (up then down)
Maximising profit
There's likely an error
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