tolong jawab ya kaka, besok mau dikumpulkan

<p>Jawaban&nbsp;</p><p><strong>a = 2</strong></p><p><strong>b = 1</strong></p><p>&nbsp;</p><p><strong>Pembahasan&nbsp;</strong></p><p>f(x) = ax + b</p><p>&nbsp;</p><p>f(3) = a.3 &nbsp;+ b&nbsp;</p><p>&lt;=&gt; 7 = 3a + b &nbsp; ..... (i)&nbsp;</p><p>&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</p><p>f(-2) = a. -2 + b</p><p>&lt;=&gt; - 3 = -2a + b ...... (ii)&nbsp;</p><p>&nbsp;</p><p>(ii) - (i)&nbsp;</p><p>(-2a + b) - (3a + b) = -3 - 7</p><p>&lt;=&gt; -5a = - 10</p><p>&lt;=&gt; a = 2</p><p>&nbsp;</p><p>(i)</p><p>3.2 + b = 7</p><p>&lt;=&gt; b = 1</p>