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Mathematics 21 Online
OpenStudy (anonymous):

how do variables help you model real world situations?

OpenStudy (solomonzelman):

Depends on the variables and equations. For example, graphing can help you, when it comes to, lets say having 10 companies that sell and ship computers in huge numbers, and you have to decide which one is cheaper, you would graph the equation/line for each of the companies. More explanations?

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