Higher June 2024 Paper 2 Q20
20 The curve C has equation \(y = 2x^2 - 12x + 7\)
Find the coordinates of the turning point on C. (3)
| Answer | Mark | Mark scheme |
|---|---|---|
| \(3, -11\) | P1 | for start of a process to complete the square, eg \(2(x^2 - 6x)\ldots\) or \(2(x^2 - 6x \ldots)\) or \((x - 3)^2 \ldots\) or an \(x\) coordinate of 3 |
| P1 | for completing the square \((y =)\ 2(x - 3)^2 - 11\) or substitutes their value of \(x\) into the equation to find \(y\) | |
| A1 | cao |
Additional guidance
… can be any constant term, but not a term in \(x\)