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What do you mean by the term linear?
Linear means that the largest power(index) in the expression, equation, inequality etc, =1
What does absolute value inequality mean?
It is an equation used to anwer an absolute value inequality.
What does global inequality mean?
It mean that in some countries are underdevloped
Which inequalities have solid line and which ones have dashed lines?
Any line divides the Cartesian plane into two parts. When deciding whether the line should be solid or dashed, think of the points on the line. If these points are not in the permitted region then it will be a dashed line, otherwise it will be a solid line. Usually this will mean that a strict inequality is dashed.
Why must you flip the inequality symbol when?
I suspect you mean the signs < and > meaning "less than" or "greater than". (There is no flip of the inequality sign, which is an equals sign with a line through it). You have to flip when you multiply a "greater or less than" eqequation if you multiply the equatiob through by -1. Example: you have 2>1, and -2<-1.
