This answer is wrong, right?

Test Preparation
1

<p>So this is from Barron's book.
If x is negative, which of the following must be true? Indicate all such statements.</p>

<p>There's one choice that I strongly disagree, and I know I'm right. But I want to double-check. It is:</p>

<p>x + 1/x < 0</p>

<p>Now, for the most numbers, this is true. BUT, if x = -1, left side is actually 0 so this is wrong. So if this were on the test, I would not count it. Thoughts?</p>

2

<p>x + 1/x</p>

<p>If x = -1,</p>

<p>Then</p>

<p>-1 + 1/-1=</p>

<p>-1 + (-1)=</p>

<p>-2</p>

<p>Therefore it is less than zero.</p>

3

<p>What (s)he said ^^</p>

<p>x+1/x</p>

<p>-1+1/(-1)</p>

<p>-1+(-1)</p>

<p>-2 < 0</p>

4

<p>Wow. I can’t believe that… So much for thinking I know how to do math. I somehow saw “x” as +1. Ugh. Thanks all!</p>