direct variation


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Related to direct variation: inverse variation

direct variation

[də′rekt ‚ver·ē′ā·shən]
(mathematics)
A relationship between two variables wherein their ratio remains constant.
An equation or function expressing such a relationship.
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These students also applied their understanding of slope (e.g., for each increase of 50 wraps, there was an increase of 36 Gauss) and used this to generate a linear equation (e.g., y = 0.72x, y = 36/50 x) for the direct variations. Those who had not yet completed algebra did not recognize the types of variation, but were able to numerically predict magnetic field strength for different solenoids, even for those that they did not have (e.g., a solenoid wrapped with 200 coils would have a magnetic field strength of 144 Gauss).
The percentage [TABULAR DATA FOR TABLE 2 OMITTED] variation coefficient for processed tomatoes is high enough to allow neither price variation nor yield variation to dominate the share of total direct variation, although price variation appears to be more important.
Both videos appear, at any given moment, as both thematic and direct variations on traditional Dutch still lifes.
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