CONSIDERATION ON THE TEACHING MATERIALS OF HIGH SCHOOL MATHEMATICS. VI : Geometric Construction of the Vertex of Parabola y=ax^2+bx+c for Varying a, b
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For a graph of quadratic function y = ax^2 + bx + c, we construct geometrically the vertex of the graph for varying a (resp. b} , while b, c (resp. a, c) are fixed, by using parallelism.
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- CONSIDERATION ON THE TEACHING MATERIALS OF HIGH SCHOOL MATHEMATICS. VI : Geometric Construction of the Vertex of Parabola y=ax^2+bx+c for Varying a, b