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Q: What does k represent in direct variation?

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The constant.

equation, table or a graph

It is 2/3.

A direct variation is when the value of K in multiple proportions is all divisible by the same number for example: XY=(1)(10) K=10 XY=(2)(20) K=40 XY=(3)(30) K=90 XY=(4)(40) K=160 In this situation the constant (K) of each proportion is divisible by 10 making the multiple equations a direct variation.

Direct variation means that a linear function can be written as y = kx. The y-intercept must be (0, 0). The constant, k, is the slope.

Related questions

The constant.

The slope of the graph of a direct variation is always positive.

the slope

k is the constant of variation and is the gradient (slope) of the relevant graph.

I have recently been doing all these direct variation problems but not every linear relationship is a direct variation... But every direct variation is a linear relation!

Direct

x/y=k

x/y=k

Direct variation is the ratio of two variable is constant. Inverse variation is when the product of two variable is constant. For example, direct variation is y = kx and indirect variation would be y = k/x .

xy=k

Direct variation is the ratio of two variable is constant. Inverse variation is when the product of two variable is constant. For example, direct variation is y = kx and indirect variation would be y = k/x .

k=0.3 and x=65

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