Year 10 Mathematics Advanced / Parabolas, Rates of Change and Variation
7E Sketching by Quadratic Formula and Discriminant
Use the discriminant Δ = b² − 4ac to count the real roots (x-intercepts) of a quadratic.
Syllabus area
Number and Algebra
Focus
Quadratic graphs and rates/variation.
You can jump straight to the Mastery Quiz whenever you are ready.
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