Problem
\( \triangle B^{\prime} C^{\prime} D^{\prime} \) is a translation of \( \triangle B C D \). Write the translation rule. \[ (x, y) \mapsto(x+\square, y+\square) \] Submit Work it out Not feeling ready yet? These can help: Translations: find the coordinates Lesson: Translations
Solution
Step 1 ：Write the given translation rule as \((x, y) \mapsto (x + a, y + b)\).
Step 2 ：Clearly state that \(\triangle B^{\prime} C^{\prime} D^{\prime}\) is a translation of \(\triangle B C D\).
Step 3 ：The translation rule is \((x, y) \mapsto (x + a, y + b)\), where \(a\) and \(b\) are the horizontal and vertical translation distances, respectively.
