Translasi (Pergeseran)
Materi pertama tentang rumus transformasi geometri yang akan dibahas adalah translasi (pergeseran). Translasi merupakan perubahan objek dengan cara menggeser objek dari satu posisi ke posisi lainnya dengan jarak tertentu. Penentuan hasil objek melalui translasi cukup mudah. Caranya hanya dengan menambahkan absis dan ordinat dengan jarak tertentu sesuai dengan ketentuan. Untuk lebih jelasnya mengenai proses translasi dapat dilihat pada gambar di bawah.
Contoh Soal Translasi
Hasil translasi itik





![Rendered by QuickLaTeX.com \[ \textrm{A.} \; \; \; \begin{pmatrix} 8 \\ 3 \end{pmatrix} \]](https://idschool.net/wp-content/ql-cache/quicklatex.com-3a77d70068a46d4ee02f9e5cf927d60c_l3.png)
![Rendered by QuickLaTeX.com \[ \textrm{B.} \; \; \; \begin{pmatrix} 3 \\ 8 \end{pmatrix} \]](https://idschool.net/wp-content/ql-cache/quicklatex.com-701e976ba75326ab346a9df894e73048_l3.png)
![Rendered by QuickLaTeX.com \[ \textrm{C.} \; \; \; \begin{pmatrix} 3 \\ 5 \end{pmatrix} \]](https://idschool.net/wp-content/ql-cache/quicklatex.com-19b9e956e6cf4dd255ea94102bcc841b_l3.png)
![Rendered by QuickLaTeX.com \[ \textrm{D.} \; \; \; \begin{pmatrix} 1 \\ 8 \end{pmatrix} \]](https://idschool.net/wp-content/ql-cache/quicklatex.com-64a28089a8aced434ca330dc20d44272_l3.png)
![Rendered by QuickLaTeX.com \[ \textrm{E.} \; \; \; \begin{pmatrix} 1 \\ 5 \end{pmatrix} \]](https://idschool.net/wp-content/ql-cache/quicklatex.com-84731d30ba09a9553f1d3c9bf33317fa_l3.png)
Misalkan
![Rendered by QuickLaTeX.com \[ T_{1} = \begin{pmatrix} a \\ b \end{pmatrix} \]](https://idschool.net/wp-content/ql-cache/quicklatex.com-62761e1380e7ca661b29a78790f644ff_l3.png)
![Rendered by QuickLaTeX.com \[ T_{2} = \begin{pmatrix} 4 \\ 1 \end{pmatrix} \]](https://idschool.net/wp-content/ql-cache/quicklatex.com-6b69c28fd985611383c01835792b3bb7_l3.png)
![Rendered by QuickLaTeX.com \[ T_{2} \bullet T_{1} = \begin{pmatrix} a + 4 \\ b + 1 \end{pmatrix} \]](https://idschool.net/wp-content/ql-cache/quicklatex.com-de35567ccd0dd5ccf8a3f588cd006bdb_l3.png)
Perhatikan proses translasi berikut.

Mencari nilai a:
![Rendered by QuickLaTeX.com \[ 3 + a + 2 = 8 \]](https://idschool.net/wp-content/ql-cache/quicklatex.com-044b30f338bb20372cf75be16c453598_l3.png)
![Rendered by QuickLaTeX.com \[ a + 5 = 8 \]](https://idschool.net/wp-content/ql-cache/quicklatex.com-e9174536faf7bae065a1bb6832ded6d4_l3.png)
![Rendered by QuickLaTeX.com \[ a = 8 - 5 = 3 \]](https://idschool.net/wp-content/ql-cache/quicklatex.com-8d17428ab9b09dfd40535a65b9d689cc_l3.png)
Mencari nilai b:
![Rendered by QuickLaTeX.com \[ -2 + b + 1 = 7 \]](https://idschool.net/wp-content/ql-cache/quicklatex.com-2942ebf978d185a2c5dcc0aafa7fbb2c_l3.png)
![Rendered by QuickLaTeX.com \[ b - 1 = 7 \]](https://idschool.net/wp-content/ql-cache/quicklatex.com-fd4c72f74aeb4c187e433c18f9430dca_l3.png)
![Rendered by QuickLaTeX.com \[ b = 7 + 1 = 8 \]](https://idschool.net/wp-content/ql-cache/quicklatex.com-5dd96f78839337b03b0c1b2b7e7427c8_l3.png)
Jadi, nilai translasi dari

![Rendered by QuickLaTeX.com \[ T_{1} = \begin{pmatrix} 3 \\ 8 \end{pmatrix} \]](https://idschool.net/wp-content/ql-cache/quicklatex.com-efd697af9e79d4724d358fe2150bd291_l3.png)
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