By completing the square, find the coordinates of the turning point of the curve with the equation y=x2+kx−7y = x^2 + kx - 7y=x2+kx−7, in terms of k k\,k 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.