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Which of the following best describes the term direct variation?


A.Two variables exhibit direct variation if they have a constant ratio.

BTwo variables exhibit direct variation if they do not have a constant ratio.
CTwo variables exhibit direct variation if, when one variable increases, the other variable decreases.
DTwo variables exhibit direct variation if their products are always equal.

Verified Answer :

texaschic101
ATwo variables exhibit direct variation if they have a constant ratio
taskmasters

The best answer among the choices listed is option A. The statement that best describes the term direct variation is that "Two variables exhibit direct variation if they have a constant ratio". For instance, y is directly related to x. We can write in an equation by:

y = kx where k is the constant of proportionality and should be equal for all values of y and x.

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