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If the two variables in direct variation are X and Y then K is Y/X and this gives the equation Y = KX
Equivalently, if you write C = 1/K, then the constant of variation can be calculated as X/Y and this gives the equation as X = CY.
It does not matter which of the two you do as long as you use the correct resulting equation. Because of the relationship between K and C, one of them (at least in terms of school maths) will usually be an integer and so easier to work with.
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What is direct variation and how would solve direct variations?
k=0.3 and x=65
How are direct variation and joint variation related?
Both are variations of certain kinds of equations. X=kY is a direct variation since X varies directly as Y and k is the constant of variation. X=k/Y is an inverse variation where X varies inversly as Y and k is the constant of variation. Both of these variations are also functions.
What are three types of variations in statistics?
Inverse Direct Joint
What is the variable k in a direct variation?
the slope
Can slope k of a direct variation be positive?
The slope of the graph of a direct variation is always positive.
