Posted by cv on Thursday, December 19, 2013 at 8:52pm.
how can direct variation be easily identified on a table equation on a graph?

algebra help  Steve, Friday, December 20, 2013 at 12:46am
The y values must be a constant times the x values.
So, check any pair, and make sure the other pairs are related by the same multiple.
On a graph, it will be a straight line passing through (0,0)
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