Respuesta :
A. Two variables exhibit direct variation if they have a constant ratio
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.
y = kx where k is the constant of proportionality and should be equal for all values of y and x.