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 KCSE 2018 Mathematics Paper 1 Video Questions and Answers

The diagram below shows triangle ABC with vertices A (-1, -3), B (1, -1) and C (0, 0), and line M.
(a) Draw triangle A'B’C' the image of triangle ABC under a reflection in the line M. (2 marks)
(b) Triangle A“B“C“is the image of triangle A’B’C’ under a transformation represented by the matrix T = $\begin{pmatrix}
1 & 2\\
0& 1
(i) Draw triangle A”B”C“(3 marks)
(ii) Describe fully the transformation represented by matrix T. (3 marks)
(iii) Find the area of triangle A’B'C' hence find area of triangle A“B“C”. (2 marks)

 (11m 3s)
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