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More Lessons for Grade 9 Math

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Solution, examples, videos, worksheets, and activities 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.

You will learn given the direct variation equation, to identify the constant of variation and the relationship between k and m.

Direct variation

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

More Lessons for Grade 9 Math

Math Worksheets

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.

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.

You will learn given the direct variation equation, to identify the constant of variation and the relationship between k and m.

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You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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