For a quadratic equation of the form \(y = k{(x - a)^2} + b\), the following diagram shows the main properties: If k > 0, the vertex is a minimum turning point If k < 0, the vertex is a maximum ...

The coordinates of the turning point and the equation of the line of symmetry can be found by writing the quadratic expression ... will be a positive U-shaped curve. Writing \(y = x^2 – 6x ...