hi guys,
This problem is from kaplan and I wasn't clear with their explanation.
1) Which of the following describess all values of x that are solutions to the inequality |x+2| > 6?
a) x>4
b) x>8
c) x < -8 or x>4
d) x<4 or x > 8
e) -8<x<4
Thanks in advance,
Karthik
kaplan problem
This topic has expert replies
-
- Newbie | Next Rank: 10 Posts
- Posts: 3
- Joined: Sun Jul 20, 2008 6:19 pm
-
- Legendary Member
- Posts: 891
- Joined: Sat Aug 16, 2008 4:21 am
- Thanked: 27 times
- Followed by:1 members
- GMAT Score:660(
try to imagine absolute values on number line
--------------------------------------------------------------->
......................-6......................0.........................+6
..............x+2<-6.................................................x>6
substract 2 from x, -6 and 6 you'll get
......x<-8....................................................x>4
another way
|x+2|>6
-6>x+2>6
substract 2
-8>x>4
Answer C
--------------------------------------------------------------->
......................-6......................0.........................+6
..............x+2<-6.................................................x>6
substract 2 from x, -6 and 6 you'll get
......x<-8....................................................x>4
another way
|x+2|>6
-6>x+2>6
substract 2
-8>x>4
Answer C