Posted by Jon on Monday, February 25, 2008 at 3:55pm.
( / means absolute value)
Solve: 3+/2y1/>=1. Graph the solution set on a number line.
The number line I have is:
5 4 3 2 1 0 1 2 3 4 5 6
I'm confused on what to do.

Math  Reiny, Monday, February 25, 2008 at 4:57pm
3+ │2y1│ ≥ 1 or
│2y1│ ≥ 2
this has an intuitive solution.
by the definition of absolute value, the left side can only be positive or zero.
any positive value or zero ≥ 2
so the solution would be the entire number set. So draw a solid line on your number line with arrows in either direction.

Math  Jon, Monday, February 25, 2008 at 5:13pm
I have to show my work so is that ALL I have to do? 3+ ©¦2y1©¦ ¡Ý 1 or
©¦2y1©¦ ¡Ý 2

Math  Reiny, Monday, February 25, 2008 at 5:21pm
by saying,
"by definition │anything│ ≥ 2" you have shown your work.
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