1) <span>y=2x-1/3</span>
<span> 0=2*(-1/3)-1/3</span>
<span> 0=-1</span>
<span> Ответ: 1 не принадлежит <span>y=2x-1/3</span></span>
<span><span>2) <span>y=2x-1/3</span></span></span>
<span><span><span> 1=2*(-2)-1/3</span></span></span>
<span><span><span> 1=-4 1/3</span></span></span>
<span><span><span> Ответ: 2 не принадлежит <span>y=2x-1/3</span></span></span></span>
<span><span><span><span>3) <span>y=2x-1/3</span></span></span></span></span>
<span><span><span><span><span> 1/3=2*1/3-1/3</span></span></span></span></span>
<span><span><span><span><span> 1/3=1/3</span></span></span></span></span>
<span><span><span><span><span> Ответ: 3 пренадлежит <span>y=2x-1/3</span></span></span></span></span></span>
<span><span><span><span><span><span>4)<span>y=2x-1/3</span></span></span></span></span></span></span>
<span><span><span><span><span><span> 2=2*3-1/3</span></span></span></span></span></span>
<span><span><span><span><span><span> 2=5 2/3</span></span></span></span></span></span>
<span><span><span><span><span><span> Ответ: 4 не принадлежит <span>y=2x-1/3</span></span></span></span></span></span></span>