Quadratic functions and graphs

  • Fence it
    problem

    Fence it

    Age
    11 to 14
    Challenge level
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    If you have only 40 metres of fencing available, what is the maximum area of land you can fence off?

  • Geometric Parabola
    problem

    Geometric parabola

    Age
    14 to 16
    Challenge level
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    Explore what happens when you draw graphs of quadratic equations with coefficients based on a geometric sequence.
  • Guessing the graph
    problem

    Guessing the graph

    Age
    14 to 16
    Challenge level
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    Can you suggest a curve to fit some experimental data? Can you work out where the data might have come from?
  • Parabolic Patterns
    problem

    Parabolic patterns

    Age
    14 to 18
    Challenge level
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    The illustration shows the graphs of fifteen functions. Two of them have equations $y=x^2$ and $y=-(x-4)^2$. Find the equations of all the other graphs.

  • Which quadratic?
    problem

    Which quadratic?

    Age
    14 to 18
    Challenge level
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    This task develops knowledge of transformation of graphs. By framing and asking questions a member of the team has to find out which mathematical function they have chosen.

  • What's that graph?
    problem

    What's that graph?

    Age
    14 to 18
    Challenge level
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    Can you work out which processes are represented by the graphs?

  • Parabella
    problem

    Parabella

    Age
    16 to 18
    Challenge level
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    This is a beautiful result involving a parabola and parallels.