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wikiFAYZ
The Independent variable would be 2x, and the dependent variable would be fx

2x would be independent because you can put those together and get a random number. And fx would be the dependent variable because (x) depends on what the answer to 2x is.

Hope this helped:)
bedwards1225

The independent variable is 2x because x is the variable you are changing. f(x) would be the dependent variable because that is the result you get due to the independent variable