<p>K this is probably an easy question but I got it wrong.</p>
<p>This is a math problem from pg 521 #14, from the blue book</p>
<p>For how many ordered pairs of positive integers (x,y) is 2x+3y < 6?
<p>The answer is one because of the coordinate (1,1)...however I thought zero was considered a positive integer? Or is it neither positive or negative? I put down five, because of the points (0,0), (0,1), (1,0), (1,1), (2,0)</p>