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No. It is a single number. For a direct variation you need a minimum of two pairs of ordered numbers.
If you are paid on an hourly rate, the number of hours that you work and your pay will be in direct variation.
one quantity varies directly as the square of the other quantity. in symbols, y = kx squared
direct varation is when both x and y rise and decrease by the same number. inverse is when x or y decreases, the other one increases by the same number
A direct variation (!) or direct reelationship.