(a) Reflect the shape A in the line \(x = -1\). [2]
(b) Enlarge the shape B by a scale factor of 2, using (1, 3) as the centre of enlargement. [3]
Mark scheme (a)
Scheme
Marks
Comments
Correct reflection.
B2
Award B1 for one of the following:
line \(x = -1\) drawn
correct reflection in line \(y = -1\)
a correct reflection with only one other incorrect reflection seen.
In the original the correct answer is shaded green and the incorrect example red, with red/green handwriting; shown here as darker grey (correct) and lighter grey (incorrect).
Mark scheme (b)
Scheme
Marks
Comments
Correct enlargement.
B3
Award B2 for one of the following:
an enlargement of scale factor 2 with correct orientation but not from centre (1,3)
an enlargement of scale factor 3 from centre (1,3)
4 correct vertices plotted but not joined.
Award B1 for one of the following:
an enlargement of scale factor 2 with incorrect orientation
sight of appropriate 4 ‘rays’ from point (1,3)
an enlargement of scale factor 3 with correct orientation but not from centre (1,3)
an enlargement of scale factor 2 of one of the sides, with correct orientation, from centre (1,3). (The side must be part of a rectangle).
In the original the correct answer is shaded green and the incorrect example red, with red/green handwriting; shown here as darker grey (correct) and lighter grey (incorrect).
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