BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

which of the following must be true?

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 392
Joined: Thu Jan 15, 2009 12:52 pm
Location: New Jersey
Thanked: 76 times

by truplayer256 » Sat Jun 06, 2009 4:54 am
y+|y|=0
Think about this question for a moment:

In order for y+|y| to equal 0, y must be negative. There is no way in which y can be positive in order to satisfy the equation y+|y|=0. Now let's say y=-1:

-1+|-1|=-1+1=0

If you use other negative numbers less than -1, you'll also get 0, so y has to be less than or equal to 0.
Top
Post new topic Post Reply
• Page 1 of 1