Two variables, X and Y, are in direct variation if Y = kX for some constant k.
The graph of Y as a function of X will be a straight line through the origin.
The equation ( y = 4x + 1 ) is not a direct variation. In a direct variation, the relationship can be expressed in the form ( y = kx ), where ( k ) is a constant and there is no constant term added or subtracted. Since this equation includes the constant term ( +1 ), it does not meet the criteria for direct variation.
No, the math term ratio doesn't mean multiply.
Direct variation
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
the mean
The equation ( y = 4x + 1 ) is not a direct variation. In a direct variation, the relationship can be expressed in the form ( y = kx ), where ( k ) is a constant and there is no constant term added or subtracted. Since this equation includes the constant term ( +1 ), it does not meet the criteria for direct variation.
No, the math term ratio doesn't mean multiply.
Direct variation
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
variation means to be different also the meaning is used in science
it is a math term
the mean
its the answer.
mean: average
Direct variation
No, it means average.
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