carilah titik potong untuk fungsi-fungsi berikut ini: a). 3x + 2y = 6 2x - 4y = 4

<p>3x + 2y = 6 &nbsp; &nbsp;...(1) &nbsp; &nbsp;&nbsp;</p><p>2x - 4y = 4 &nbsp; &nbsp;...(2)</p><p>&nbsp;</p><p>Eliminasi y untuk mendapatkan nilai x</p><p>3x + 2y = 6 &nbsp; &nbsp; &nbsp; (dikali 2) --&gt; 6x + 4y = 12 &nbsp; &nbsp; &nbsp; &nbsp;</p><p>2x - 4y = 4 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; --&gt; <u>2x - 4y = 4 &nbsp; &nbsp;</u> +</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 8x &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 16</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; x = 2</p><p>Substitusikan x = 2 ke persamaan (1)</p><p>3x + 2y = 6&nbsp;</p><p>3(2) + 2y = 6&nbsp;</p><p>6 + 2y = 6</p><p>2y = 6 - 6</p><p>2y = 0</p><p>y = 0</p><p>&nbsp;</p><p>Jadi titik potongnya adalah <strong>(2,0)</strong></p>