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Direct Variation

Videos, worksheets, games and acivities to help Algebra students learn about direct variation or direct proportion.

Video on Direct Variation - Algebra Help
Students learn that if each y value in a function is the result of multiplying each x value by the same number, then the function is an example of direct variation. And the formula for direct variation is y = kx, where k represents the constant of variation.

Video on Direct Variation - Constant of Variation
Students learn that direct variation is a relationship between two variables in which the variables have a constant ratio, k, where k is not equal to zero. k is called the constant of variation, and if the variables are x and y, the following formulas can be used to represent direct variation: y/x = k or y = kx.

Direct variation

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