graphing these inequalities....

[soccerchick913]

1. 15 - 5x <= 0 and 5x + 6 >= -14
here's what i got.....
x>= 3 x>= -4
but when i graph it, it doesn't come out like an and inequality should.

2) |3b + 5| <= -2 so since it's < it's an and problem so then it's
|3b + 5| <= -2 and |3b + 5| >= 2 and i got.....
b<= -2 1/3 b>= -1
and this one doesn't come out like an and inequality should either... it comes out like an or inequality.

If anyone could help me I'd really appreciate it! I know when I figure out what I did wrong it will be so obvious!

 

[Erik_D]

graphing these inequalities

1. This is an AND problem. Any value of x>=4 is also >-3. This is what both inequalities have in common.

2. Either the question was written incorrectly or it was just trying to make you think.

|3b + 5| is an absolute value, the distance from 0, meaning that it is positive. There is no solution for |3b + 5| <= -2

If the question was |3b + 5| <= 2, it would be an AND problem. If the question was |3b + 5| >= 2, it would be an OR problem.