Posted by Cassie on Friday, August 23, 2013 at 12:02am.
Please help me graph this
Absolute value x+1 inside absolute brackets -3<4
Where would this be on a graph line?
- Algebra-help please - Steve, Friday, August 23, 2013 at 12:24am
Not clear just what you mean, but if it's
|x+1| - 3 < 3
|x+1| < 6
Then either x+1 >= 0 (x >= 1) and
x+1 < 6
x < 5
or x+1 < 0 (x < -1) and
-(x+1) < 6
-x < 7
x > -7
So, we have
-7 < x < -1 or -1<=x<5
-7 < x < 5
- Algebra-help please - Cassie, Friday, August 23, 2013 at 12:45am
original problem was <4 at the end not <3....thanks for your help...It was hard to explain.
- Algebra-help please - Steve, Friday, August 23, 2013 at 4:23am
Oops. My bad. Make the change and solve again. The key is to solve for the two cases where the expression in || is positive or negative.
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