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Mathematics, 15.01.2021 22:00 jellybean6487

Given that D( x ) = 2 x , select all of the following that are true statements. D( x ) is a direct variation.
D( x ) is a function.
D( x ) is a rule for the set of points (5, 10), (6, 12) and (-2, -4).
x is the dependent variable.
D(6) = 3

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