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Q: When giving rules for graphing the solution of an inequality the author writes the arrow points in the same direction as the inequality sign. Explain what criteria must be placed on the inequaltiy for?
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Related questions

How is graphing an inequality on a number line different from graphing an inequality on a coordinate plane?

The first is 2-dimensional, the second is 1-dimensional.


How is graphing a linear inequality on a coordinate plane different from graphing an inequality on a number line?

The first is 2-dimensional, the second is 1-dimensional.


What is the difference between graphing a line and graphing an inequality?

when graphing a line you simply plot the points based on the ordered pairs and connect the dots; there you have a line. An inequality graph refers to the shaded region of the coordinate plane that does not coincide with the line, hence the term, inequality.


When graphing a linear inequality the first step is to replace the inequality symbol with a sign?

john


Why is graphing an inequality valuable?

Because if there are two inequality eqations, you can find out which overlap if graphed.


How is graphing an inequality different than graphing an equation?

Not greatly. To graph an inequality, you start off graphing the corresponding equality. It is only then that you select one side or the other (with or without the graph itself), as the region of interest.


How do you put greater than symbol on the calculator?

Unless it's a fancy graphing calculator, you don't. When solving an inequality, you need to solve it as an equality, remaining mindful of the proper direction of the inequality symbol after each step.


How is graphing a linear inequality different than graphing a linear equation?

In an inequality, you have to shade a side of a line to see show if the possible answers are greater than or equal to it


When graphing a linear inequality the first step is to replace the inequality symbol with what sign?

With the equal sign (=).


When to use a solid line as a boundary when graphing a linear inequality?

If it is <= or >=


When graphing a system of inequalities the line is dotted for the?

strict inequality


How is graphing an inequality different from graphing a line on a coordinate plane?

Whereas the procedure for a linear equality is the same, the inequality defines all of the plane on one side (or the other) of the corresponding line.