Sketching a Quadratic Graph and Finding Its Line of Symmetry

Sketching a Quadratic Graph and Finding Its Line of Symmetry

Secondary 3
  1. Sketch the graph of \(y=2x(5-x)\).
    Indicate clearly the values where the graph crosses the \(x\)- and \(y\)-axes.
  2. Write down the equation of the line of symmetry of the curve.

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Answer:(i) x-intercepts (0,0),(5,0); y-intercept (0,0); vertex (2.5,12.5); (ii) x = 2.5.

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