Turning points

There are 12 NRICH Mathematical resources connected to Turning points
Curve Hunter
problem

Curve Hunter

Age
14 to 18
Challenge level
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This problem challenges you to sketch curves with different properties.
Curve fitter
problem

Curve fitter

Age
14 to 18
Challenge level
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This problem challenges you to find cubic equations which satisfy different conditions.
Patterns of inflection
problem

Patterns of inflection

Age
16 to 18
Challenge level
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Find the relationship between the locations of points of inflection, maxima and minima of functions.
Placeholder: several colourful numbers
problem

Bird-Brained

Age
16 to 18
Challenge level
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How many eggs should a bird lay to maximise the number of chicks that will hatch? An introduction to optimisation.
Calculus analogies
problem

Calculus analogies

Age
16 to 18
Challenge level
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Consider these analogies for helping to understand key concepts in calculus.
Scientific curves
problem

Scientific curves

Age
16 to 18
Challenge level
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Can you sketch these difficult curves, which have uses in mathematical modelling?
Least of All
problem

Least of All

Age
16 to 18
Challenge level
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A point moves on a line segment. A function depends on the position of the point. Where do you expect the point to be for a minimum of this function to occur.
Quick Route
problem

Quick Route

Age
16 to 18
Challenge level
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What is the quickest route across a ploughed field when your speed around the edge is greater?
Exponential Trend
problem

Exponential Trend

Age
16 to 18
Challenge level
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Find all the turning points of y=x^{1/x} for x>0 and decide whether each is a maximum or minimum. Give a sketch of the graph.
Discrete Trends
problem

Discrete Trends

Age
16 to 18
Challenge level
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Find the maximum value of n to the power 1/n and prove that it is a maximum.