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Completing the Square

Completing the Square

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Question 124
a.

Show that 2x2−12x+23=2(x−3)2+52x^2 - 12x + 23 = 2(x - 3)^2 + 52x2−12x+23=2(x−3)2+5.

[3]
b.

Hence, or otherwise, write down the coordinates of the turning point of the graph of y=2x2−12x+23y = 2x^2 - 12x + 23y=2x2−12x+23

[1]
Markscheme

Completing the Square Questions

  1. GCSE
  2. /Maths
  3. /Completing the Square

250 exam-style questions on OCR GCSE Maths Completing the Square. Each one has a worked solution and a mark scheme showing where the marks go.

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