(a) Rotate triangle A through 90° anticlockwise, about the point (–2, 3). [2]
(b) Enlarge triangle B by a scale factor of \(\dfrac{1}{2}\), using (0, 0) as the centre of enlargement. [2]
Mark scheme (a)
Scheme
Marks
Comments
Correct rotation.
B2
Allow B1 for two correct vertices. B1 for a 90° clockwise rotation about (−2,3) OR B1 for a 90° anticlockwise rotation about (3,−2).
Mark scheme (b)
Scheme
Marks
Comments
Correct enlargement.
B2
Allow B1 for two correct vertices. B1 for an enlargement of scale factor ½ but not centred at (0,0). Must be in the correct orientation. SC1 for a correct enlargement using a scale factor of −1/2 centred at (0,0).
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