Graph sketching

  • problem
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    Immersion

    Age
    14 to 16
    Challenge level
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    Various solids are lowered into a beaker of water. How does the water level rise in each case?

  • Parabolic Patterns
    problem
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    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.

  • Exploring cubic functions
    problem
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    Exploring Cubic Functions

    Age
    14 to 18
    Challenge level
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    Quadratic graphs are very familiar, but what patterns can you explore with cubics?

  • Back fitter
    problem
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    Back Fitter

    Age
    14 to 18
    Challenge level
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    10 graphs of experimental data are given. Can you use a spreadsheet to find algebraic graphs which match them closely, and thus discover the formulae most likely to govern the underlying processes?

  • What's that graph?
    problem
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    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?

  • Curve fitter
    problem
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    Curve Fitter

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

  • The silhouette of a cartoon witch.
    problem
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    Witch of Agnesi

    Age
    16 to 18
    Challenge level
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    Sketch the members of the family of graphs given by $y = a^3/(x^2+a^2)$ for $a=1, 2$ and $3$.

  • Equation matcher
    problem
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    Equation Matcher

    Age
    16 to 18
    Challenge level
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    Can you match these equations to these graphs?
  • Tangled Trig Graphs
    problem
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    Tangled Trig Graphs

    Age
    16 to 18
    Challenge level
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    Can you work out the equations of the trig graphs I used to make my pattern?

  • Area L
    problem
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    Area L

    Age
    16 to 18
    Challenge level
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    By sketching a graph of a continuous increasing function, can you prove a useful result about integrals?