IGCSE Maths - Quadratics (Notes). Exploring the effect(s) of each coefficient on the shape of the parabola; use the Geogebra link to explore for yourself. Finding the coordinates for the turning point. Factorising a quadratic expression by inspection, completing the square, using the quadratic equation to obtain the roots. The discriminant of the quadratic equation and imaginary roots. (22 pages, 10 diagrams & 35 examples.)
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