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Support · Mathematics Standard 11–12 – Year 12 – Standard 2 · Bivariate data analysis

Support Determine and interpret the intercept and gradient of the line of best fit from a given graph to form an equation of the line

Resources for the prerequisite content of this dot point: earlier-stage (or earlier sub-level) dot points in the same strand that students usually need first. Use these to fill gaps before or alongside the core lesson.

Prerequisite links are draft mappings generated from the syllabus structure (earlier stage, same strand, closest content). They are being reviewed by teachers. Spot a poor match? Tell us.

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Prerequisite dot points

Create a line of best fit, by eye, on an existing scatter plot

Stage 5 · Data analysis B Draft mapping

  • SimulationEnrichment
    PhET Curve Fitting
    PhET Interactive Simulations · Interactive (browser) · Free · Link checked 2026-10-15 · Hands-on, No prep
    Use it for: Compare lines of best fit on scatter data.
  • SimulationStarter
    PhET Least-Squares Regression
    PhET Interactive Simulations · Interactive (browser) · Free · Link checked 2026-10-15 · Hands-on, No prep
    Use it for: Draw a line of best fit by eye and compare with the calculated one.
  • WorksheetDrillExit ticket
    Corbettmaths practice questions: Graphs: scatter graphs (draw)
    Corbettmaths · Web page · Free · Link checked 2026-10-15 · Answers included, No prep, Printable
    Use it for: Free printable graded practice questions (with answers) on graphs: scatter graphs (draw) for drill or a quick check.
  • VideoStarter
    Corbettmaths video: Graphs: scatter graphs (draw)
    Corbettmaths · Video · Free · Link checked 2026-10-15 · No prep
    Use it for: Short worked-example video on graphs: scatter graphs (draw) to model the method before practice or for flipped revision.

Distinguish between situations involving 1- variable and 2-variable (bivariate) data and explain when each is needed

Stage 5 · Data analysis B Draft mapping

No checked resources on this prerequisite dot point yet.

Use the line of best fit, by eye, to make predictions between known data values (interpolation) and what might happen beyond known data values (extrapolation)

Stage 5 · Data analysis B Draft mapping