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A direct proportion. That is, if one value goes up, so does the other.

You can think of it as: unit 1/unit 2 = unit 1/unit 2

Q: What is direct variation?

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A direct variation (!) or direct reelationship.

Direct variation is not a special case.

Yes, it is direct variation.

No, it is not a direct variation.

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!

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

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 .

The constant of variation in a direct variation is the constant (unchanged) ratio of two variable quantities. The formula for direct variation is. y=kx (or y=kx ) where k is the constant of 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

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

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.

find the direct variation equation 3x+y=0