In class we explored how we can find the coordinates of the minimum or maximum point of a quadratic graph (also called the 'vertex' or 'turning point'). One method is by completing the square, which is explained really well in the MyMaths lesson Algebra> Graphs> Sketching Quadratics.
We have now completed our study of quadratics at GCSE. We will use quadratics when we look at simultaneous equations next term and when we do algebraic fractions in Year 11. We will also revise quadratics this time next year, just before your GCSEs.
You should now know how to both plot and sketch a quadratic graph. You know what shape a quadratic graph will be. When you do a sketch you can find the crossing points on both axes and the turning point. You know how to expand and factorise quadratic expressions. You recognise a difference of two squares. You know how to solve a quadratic equation by factorising or using the formula or completing the square. Look at how much you can do! Well done if you've mastered this topic, most of which is A*/A grade. In class you made your own revision summary using this guidance sheet.
For your homework I gave you a mixture of quadratics exam questions. It is helpful to get used to the wording of GCSE questions.