Higher June 2018 Paper 1 Q7
7
Shape T is reflected in the line \(x = -1\) to give shape R.
Shape R is reflected in the line \(y = -2\) to give shape S.
Describe the single transformation that will map shape T to shape S. (2)
| Answer | Mark | Mark scheme |
|---|---|---|
| rotation 180° about \((-1, -2)\) or enlargement sf \(-1\) centre \((-1, -2)\) | B2 | rotation 180° about \((-1, -2)\) or enlargement sf \(-1\) centre \((-1, -2)\) |
| (B1 | rotation 180° or rotation about \((-1, -2)\) OR enlargement sf \(-1\) or enlargement centre \((-1, -2)\)) Award no marks for the description if more than one transformation is given SC B1 for fully correct diagram if B0 scored |
Additional guidance
Condone missing brackets but do not accept centre written as a vector
Do not accept ‘half turn’ for ‘rotation 180’
Ignore references to clockwise and anticlockwise
Triangles at \((-3, 1), (-5, 1), (-4, 3)\) and \((-3, -5), (-5, -5), (-4, -7)\)