No. It is a single number. For a direct variation you need a minimum of two pairs of ordered numbers.
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A direct variation (!) or direct reelationship.
No, it is not a direct variation.
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!
The slope of the graph of a direct variation is always positive.
No. The origin must be a solution for any direct variation.