# How to Graph Linear Equations & Functions With Direct Variation?

If two variables, "x" and "y," are related in a way in which the ratio of their values is identical, they are said to possess direct variation. (See Reference 1) These variables increase or decreas...
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http://www.ehow.com/how_8354134_graph-equations-functions-direct-variation.html

## How to Graph a System of Linear Inequalities of Direct Variation?

Direct variation occurs when y is greater than, less than, greater than or equal to, or less than or equal to a constant of proportionality times x. Both members of a system of linear inequalities,...
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http://www.ehow.com/how_8479563_graph-linear-inequalities-direct-variation.html

## How to Graph Equations, Linear Equations, Coordinates and Functions?

Some high school math courses require students to be proficient in using a graphic calculator. Many classes ask that students purchase a Texas Instruments calculator such as a TI-83, TI-84 Plus or ...
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http://www.ehow.com/how_8095002_graph-linear-equations-coordinates-functions.html

## How to Graph Linear Equations With Graph Calculators?

Being able to graph linear equations on a graphing calculator is an important skill to have because it can save a lot of time. Graphing by hand is imprecise and difficult and calculators can perfor...
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http://www.ehow.com/how_8201502_graph-linear-equations-graph-calculators.html

## How to Graph Linear Equations With Restraints?

Sometimes, in your algebra and upper-level math courses, you will have to graph linear equations with restrictions. For instance, a textbook might stipulate that x-values must be greater than 2, or...
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http://www.ehow.com/how_8267610_graph-linear-equations-restraints.html