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For a direct variation equation the constant MUST be 0.

Then the ratio of a pair of values of the two variables is the slope.

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12y ago

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Related Questions

Can you have two direct variation equations with same slope?

Yes.


Is the constant of variation the same as slope?

yes y=kx is the formula for direct variation, and k represents constant of variation which can also be called slope.


What does k correspond to in a direct variation function?

k is the constant of variation and is the gradient (slope) of the relevant graph.


Difference between the graphs of linear equations and a direct variation?

Linear has a slope direct does not but both go through the orgin


Can slope k of a direct variation be positive?

The slope of the graph of a direct variation is always positive.


When is a linear function considered to be a direct variation?

Direct variation means that a linear function can be written as y = kx. The y-intercept must be (0, 0). The constant, k, is the slope.


What is the variable k in a direct variation?

the slope


Find the constant of variation and the slope of the given line from the graph of y equals 2.5x?

find the constant of variation and the slope of the given line from the graph of y=2.5x


Do the slope of direct variation changes as you move along the graph?

No.


Is constant of proportionality equivalent to the slope?

Yes, the constant of proportionality is equivalent to the slope in a linear relationship. In a direct variation where one variable is proportional to another, the constant of proportionality represents the rate of change between the two variables, which is precisely what the slope indicates in a linear equation. Thus, both concepts describe how one quantity changes in relation to another.


Does a direct proportion have to have a slope of 1?

No, a direct proportion does not have to have a slope of 1. A direct proportion means that two quantities increase or decrease together at a constant ratio, which can be represented by the equation (y = kx), where (k) is a constant. The slope of the line in a graph of a direct proportion is equal to this constant (k); if (k) is greater than 1 or less than 1, the slope will reflect that but still indicate a direct relationship.


Is -3x -35y equals 14 a direct variation?

no. direct variation implies that you can simplify the problem into several forma which are equivalent to y/x = k in which k is called the constant of variation. one of these equivalent forms would by y = kx + 0 (slope intercept form) in which the y intercept must be 0 rearranging your equation gives a y- intecept of -14/35 which reduces to -2/5 since this is not zero. this is not direct variation.