Write 3x2−6x+k3x^2 - 6x + k3x2−6x+k in the form a(x+b)2+ca(x + b)^2 + ca(x+b)2+c where aaa, bbb, and c c\,c are in terms of kkk.
Hence, or otherwise, write down the coordinates of the turning point of the graph of y=3x2−6x+ky = 3x^2 - 6x + ky=3x2−6x+k
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.