Date | May Example question | Marks available | 2 | Reference code | EXM.2.AHL.TZ0.15 |
Level | Additional Higher Level | Paper | Paper 2 | Time zone | Time zone 0 |
Command term | Find | Question number | 15 | Adapted from | N/A |
Question
The matrix A is defined by .
Pentagon, P, which has an area of 7 cm2, is transformed by A.
The matrix B is defined by .
B represents the combined effect of the transformation represented by a matrix X, followed by the transformation represented by A.
Describe fully the geometrical transformation represented by A.
Find the area of the image of P.
Find the matrix X.
Describe fully the geometrical transformation represented by X.
Markscheme
stretch A1
scale factor 3, A1
y-axis invariant (condone parallel to the x-axis) A1
and
stretch, scale factor 2, A1
x-axis invariant (condone parallel to the y-axis) A1
[5 marks]
A1
A1
[2 marks]
(A1)
(M1)
A1
[3 marks]
Rotation A1
clockwise by 30° about the origin A1
[2 marks]