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# Is the problem y equals 3x a direct variation if so what is the constant of variation?

Wiki User

2010-03-30 04:32:20

y=3x is a direct variation in that y varies directly with x by a factor of 3. Any linear equation (a polynomial of degree 1, which is a polynomial equation with a highest exponent of 1), is a direct variation of y to x by some constant, and this constant is simply the coefficient of the "x" term. Other examples:

y=(1/2)x is a direct variation, and the constant of variation is 1/2

y=-9x is a direct variation, and the constant of variation is -9

Wiki User

2010-03-30 04:32:20
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