Jika titik A (-1, 4) ditranslasikan hasilnya titik A' (5, -2). Koordinat bayangan titik B (3, 8) oleh translasi tersebut adalah ... A. (7, 10) B. (-3, 14) C. (9, 2) D. (-1, 6)

<p>Jawabannya: <strong>c. (9,2)</strong></p><p>Kok bisa?&nbsp;</p><p>A(-1,4) -&gt; A'(5,-2)</p><p>-1+a = 5 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 4+b= -2</p><p>&nbsp; a &nbsp; &nbsp; =5+1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;b &nbsp; = -2 + (-4)</p><p>&nbsp; a &nbsp; &nbsp; =6 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;b &nbsp;= -6</p><p>B(3,8) -&gt; B'(x+a, y+b)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; B'(3+6, 8+ (-6))</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; B'(9,2)</p>