Higher June 2024 Paper 5 Q19
19
(a) Describe fully the single transformation that is equivalent to:
- a rotation of 20° anticlockwise about the origin, followed by
- a rotation of 70° clockwise about the origin. [2]
(b) The diagram shows the coordinates of the vertices of a rectangle.
Not to scale
The rectangle is reflected in the line \(y = 4\).
Write down the coordinates of the vertices of the rectangle that are invariant. [1]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| Rotation about the origin and 50˚ clockwise oe | 2 | B1 for each | Accept 0, 0 or O for origin More than one transformation scores zero marks Extra properties treat as choice Accept 310˚ anticlockwise |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| (1, 4) and (5, 4) | 1 | Condone omission of bracket[s] if otherwise correct If additional coordinates listed then scores zero | |