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ICSE Class 9 Answered

The point A (5 , -1 ) on reflection in the x axis is mapped onto A' .Also A on reflection in the y axis is mapped onto A" .Write the distance between the images A' and A" . 
Asked by rkarim957 | 03 Oct, 2019, 07:33: PM
Expert Answer
When A(5, -1) is reflected in the x-axis then the point of reflection would be A'(5, 1)
When A(5, -1) is reflected in the y-axis then the point of reflection would be A''(-5, -1)
Distance between A' and A'' is given by
A apostrophe A apostrophe apostrophe equals square root of open parentheses 5 plus 5 close parentheses squared plus open parentheses 1 plus 1 close parentheses squared end root equals square root of 100 plus 4 end root equals 2 square root of 26
Answered by Renu Varma | 04 Oct, 2019, 10:18: AM
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