By completing the square, find the coordinates of the turning point of the curve with the equation y=2x2−8x+11y = 2x^2 - 8x + 11y=2x2−8x+11 You must show all your working.
250 exam-style questions on Eduqas GCSE Maths Completing the Square. Each one has a worked solution and a mark scheme showing where the marks go.