Higher November 2019 Paper 6 Q17
17 A triangle has vertices A, B and C.
The triangle is enlarged with scale factor \(f\) and centre of enlargement E.
Vertex A maps to (6, 7).
Vertex B maps to (2, 9).
(a) Find the coordinates of the centre of enlargement, E. [2]
(b) Find the scale factor, \(f\). [2]
(c) Vertex C maps to the point R.
Find the coordinates of R. [2]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| (10, 11) | 2 | B1 for a ray drawn through either point A and (6, 7) or point B and (2, 9) | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| –2 | 2 | B1 for 2 | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| (4, 1) | 2 | B1 for (4, \(k\)) or (\(k\), 1) | |