Reflection, rotation and translation preserve congruence. Translations consist of sliding an object up, down, left or right. You write this in a column vector:
![(http://www.autograph-maths.com/newsletter/issue7/screenshots/diagnostic-question-large.png)](https://getrevising.co.uk/https_proxy/9563)
This would be B, because the shape moves 5 units right and 2 units down.
Sometimes, you will have to combine transformations to 'map' one object onto another
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