Unit 10 Transformations 6 Copy the diagram. y 8 7 6 5 4 3 2 1 28 27 26 25 24 23 22 21O 21 22 23 24 25 26 27 28 7 P 1 2 3 4 5 6 7 8 x a Reflect triangle P in the line y = x. Label the image Q. b Reflect triangle Q in the line y = −x. Label the image R. c Describe fully the single transformation that maps triangle P onto triangle R. (7 marks) Problem-solving Triangle A is enlarged by scale factor 2 from centre (0, 0). Work out the area of the enlarged triangle. (3 marks) y 10 9 8 7 6 5 4 3 2 1 0 A 0 1 2 3 4 5 6 7 8 9 10 x 311