In Direct Variation, only one variable x is multiplied by a constant k called the constant of variation.
Therefore the formula for Direct Variation is y=kx.
The input variable x multiplied by the constant of variation k gives the output y.
In Direct Variation, only one variable x is multiplied by a constant k called the constant of variation.
Therefore the formula for Direct Variation is y=kx.
The input variable x multiplied by the constant of variation k gives the output y.