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Direct variation is not a special case.

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Q: Is direct variation a special case?
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Related questions

When two quantities form a direct variation what is it called?

A direct variation (!) or direct reelationship.

Is y equals 3x direct variation?

Yes, it is direct variation.

Is y equals 2x plus 5 a direct variation if so what is the constant of variation?

No, it is not a direct variation.

Does every linear equasion represent a direct variation relationship?

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!

How do you do a direct variation with an inverse variation problem?

If a variable X is in inverse variation with a variable Y, then it is in direct variation with the variable (1/Y).

What is the difference direct variation and inverse variation?

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 .

Does y equal 1X show direct variation?

Yes. y = 1x is the same as y = x which is the simplest case of direct variation. If you consider the equation y = mx + b, then a direct variation will always have b = 0 (i.e. the graph goes through the origin). The value of m is called the "constant of variation", and the equation is usually written as y = kx.

How do you know if the equation is a direct variation?

When two variables are related in such a way that the ratio of their values always remains the same, the two variables are said to be in direct variation. y=2x is direct variation y=x+2 is not direct variation

Can slope k of a direct variation be positive?

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

Can a system of two direct variation equations have no solutions?

No. The origin must be a solution for any direct variation.

How do you find the equation for a direct variation?

find the direct variation equation 3x+y=0

Can you have a negative coefficient in a direct variation?

Yes, you can have a negative coefficient in a direct variation. So if you had y = -7x, that would be a direct variation. If you have y = -x, I do not know, if that is what you mean. Hope it helped.

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