<PRE><B>Question 21009</B>
well all you have to do is plug in the number for the correct varialbe and solve.

pluging 0 in for x
3(0)+4y=12&lt;br&gt;
simplifying
4y=12&lt;br&gt;
dividing both sides by 4
y=3 &lt;br&gt;
(0,3)&lt;br&gt;&lt;br&gt;


plinging 3/4 in for y
3x+4(3/4)=12&lt;br&gt;
simplifying
3x+3=12&lt;br&gt;
subtracting 3 from both sides
3x=9&lt;br&gt;
dividing both sides by 3
x=3&lt;br&gt;
(3,3/4)&lt;br&gt;&lt;br&gt;

Pluging in 0 for y you get
3x+4(0)=12&lt;br&gt;
simplifying
3x=12&lt;br&gt;
dividing both sides by 3
x=4&lt;br&gt;
(4,0)&lt;br&gt;&lt;br&gt;

pluging in 8/3 for x you get
3(8/3)+4y=12&lt;br&gt;
simplifying
8+4y=12&lt;br&gt;
subtracting 8 from both sides
4y=4&lt;br&gt;
dividing both sides by 4
y=1&lt;br&gt;
(8/3,1)</PRE>