Functions Progress June 1
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Date
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Question written down
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Working vertically set out (line down centre)
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Coordinates labelled with (x,y), not just either x or y
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Graph constructed neatly
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Working shown sequentially
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Found and labelled 2 points to graph linear function (convention is to use intercepts)
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Used discriminant to establish if it is necessary to find x intercepts of quadratic function
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Found value of vertex of quadratic function
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Found value of x-intercepts of quadratic function
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Found y intercept of quadratic function
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Equated the 2 functions to each other
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Rearranged the 2 functions to solve (realising that solving this is different to finding x intercepts. This step is finding intersection points of the 2 functions)
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Uses factorising methods to solve. Finds 2 values of x.
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Substitutes x values into original equation to find corresponding y coordinates.
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Checks solutions against graph created to ensure reasonableness.
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Shows clearly in graph or sentence the coordinates of the intersection points
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Reflects and writes comment about the parts of the process that are difficult
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