Factorise the parabola described by the equation    and find its vertex.  (3 marks)

1. Factorise    (1 mark)
   

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2. Find the vertex of the parabola with equation    (2 marks)
   

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1. Factorise    (1 mark)
   

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2. Find the vertex of the parabola with equation    (2 marks)
   

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1. Factorise    (2 marks)
   

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2. Find the vertex of the parabola with equation    (2 marks)
   

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By completing the square, find the coordinates of the vertex of the parabola with equation

    (3 marks)

By completing the square, find the coordinates of the vertex of the parabola with equation

    (3 marks)

By completing the square, find the coordinates of the vertex of the parabola with equation

    (3 marks)