If the functional relationship is of the form y = cx where c is the constant of variation.
In graphical form, it is a straight line through the origin.
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I have recently been doing all these direct variation problems but not every linear relationship is a direct variation... But every direct variation is a linear relation!
YES...A direct variation is a linear relationship in which y-intercept is always 0.
no.
All direct variation graphs are linear and they all go through the origin.
The line doesn't go through the origin